|
| Aberdeen Burghs (seat 1/1) | James Farquhar | |
| Aberdeenshire (seat 1/1) | James Ferguson | Tory |
| Abingdon (seat 1/1) | Thomas Metcalfe | Tory |
| Aldborough (seat 1/2) | John Sullivan | |
| Aldborough (seat 2/2) | Charles Duncombe | |
| Aldeburgh (seat 1/2) | Sir John Aubrey, Bt. | Whig |
| Aldeburgh (seat 2/2) | John McMahon | Tory |
| Amersham (seat 1/2) | Thomas Drake Tyrwhitt-Drake | Tory |
| Amersham (seat 2/2) | Charles Drake Garrard – resigned Replaced by Thomas Tyrwhitt-Drake 1805 | Tory Tory |
| Andover (seat 1/2) | Thomas Assheton Smith I | Tory |
| Andover (seat 2/2) | Hon. Newton Fellowes | Whig |
| Anglesey (seat 1/1) | Sir Arthur Paget | Whig |
| Anstruther Easter Burghs (seat 1/1) | Alexander Campbell | |
| County Antrim(seat 1/2) | John Bruce Richard O'Neill | Tory |
| County Antrim (seat 2/2) | Edmond Alexander MacNaghten | Tory |
| Appleby (seat 1/2) | Sir Philip Francis | Whig |
| Appleby (seat 2/2) | John Courtenay | |
| Armagh | Patrick Duigenan | Tory |
| County Armagh (seat 1/2) | Hon. Archibald Acheson | Tory |
| County Armagh (seat 2/2) | Henry Caulfeild | Whig |
| Argyllshire (seat 1/1) | Lord John Campbell | |
| Arundel (seat 1/2) | Viscount Andover | |
| Arundel (seat 2/2) | John Atkins | |
| Ashburton (seat 1/2) | Walter Palk | |
| Ashburton (seat 2/2) | Sir Hugh Inglis | |
| Athlone | William Handcock – resigned Replaced by Thomas Tyrwhitt Jones 1803 | |
| Aylesbury (seat 1/2) | James Du Pre | |
| Aylesbury (seat 2/2) | Robert Bent – election void Replaced by William Cavendish 1804 | |
| Ayr Burghs (seat 1/1) | John Campbell II | |
| Ayrshire (seat 1/1) | William Fullarton – appointed to office Replaced by Sir Hew Dalrymple-Hamilton 1803 | |
|
| Banbury (seat 1/1) | Dudley Long North | |
| Bandon | Sir Broderick Chinnery, Bt | Whig |
| Banffshire (seat 1/1) | Sir William Grant | |
| Barnstaple (seat 1/2) | William Devaynes | |
| Barnstaple (seat 2/2) | Captain Sir Edward Pellew resigned Replaced by Viscount Ebrington 1804 | |
| Bath (seat 1/2) | Lord John Thynne | |
| Bath (seat 2/2) | John Palmer | |
| Beaumaris (seat 1/1) | The Lord Newborough | |
| Bedford (seat 1/2) | William Lee-Antonie | Whig |
| Bedford (seat 2/2) | Samuel Whitbread | Whig |
| Bedfordshire (seat 1/2) | John Osborn | Tory |
| Bedfordshire (seat 2/2) | Hon. St Andrew St John – ennobled Replaced by Francis Pym 1806 | Whig
|
| Bedwyn | See Great Bedwyn | |
| Belfast | James Edward May | Tory |
| Bere Alston (seat 1/2) | William Mitford | |
| Bere Alston (seat 2/2) | Lord Lovaine | |
| Berkshire (seat 1/2) | George Vansittart | Tory |
| Berkshire (seat 2/2) | Charles Dundas | Whig |
| Berwickshire (seat 1/1) | George Baillie | |
| Berwick-upon-Tweed (seat 1/2) | Thomas Hall – unseated on petition Replaced by Francis Sitwell 1803 | |
| Berwick-upon-Tweed (seat 2/2) 1803 | John Fordyce – unseated on petition Replaced by Alexander Allan 1803 | |
| Beverley (seat 1/2) | John Wharton | Whig |
| Beverley (seat 2/2) | Napier Christie Burton | |
| Bewdley (seat 1/1) | Miles Peter Andrews | |
| Bishops Castle (seat 1/2) | William Clive | |
| Bishops Castle (seat 2/2) | John Robinson | |
| Bletchingley (seat 1/2) | James Milnes – died Replaced by Nicholas Ridley-Colborne 1805 | |
| Bletchingley (seat 2/2) | John Benn Walsh | |
| Bodmin (seat 1/2) | Sir John Morshead, Bt Replaced by Josias Porcher 1802 | |
| Bodmin (seat 2/2) | Charles Shaw-Lefevre – sat for Reading Replaced by John Sargent 1802 – resigned Replaced by James Topping 1806 | |
| Boroughbridge (seat 1/2) | Edward Berkeley Portman | Whig |
| Boroughbridge (seat 2/2) | Hon. John Scott – died Replaced by Viscount Castlereagh 1806 | Tory Tory |
| Bossiney (seat 1/2) | Hon. James Stuart-Wortley | Tory |
| Bossiney (seat 2/2) | John Hiley Addington – resigned Replaced by George Peter Holford 1803 | Tory
|
| Boston (seat 1/2) | William Alexander Madocks | |
| Boston (seat 2/2) | Thomas Fydell I – election void Replaced by Thomas Fydell 2 | |
| Brackley (seat 1/2) | John William Egerton – ennobled Replaced by Anthony Henderson 1803 | Tory Tory |
| Brackley (seat 2/2) | Samuel Haynes – resigned Replaced by Robert Haldane Bradshaw 1802 | Tory |
| Bramber (seat 1/2) | George Manners-Sutton – died Replaced by Richard Norman 1804 | |
| Bramber (seat 2/2) | Henry Jodrell | |
| Brecon (seat 1/1) | Sir Robert Salusbury, Bt | |
| Breconshire (seat 1/1) | Sir Charles Morgan, Bt | |
| Bridgnorth (seat 1/2) | Isaac Hawkins Browne | |
| Bridgnorth (seat 2/2) | John Whitmore | |
| Bridgwater (seat 1/2) | George Pocock | |
| Bridgwater (seat 2/2) | Jeffreys Allen appointed to office Replaced by John Huddleston 1804 | |
| Bridport (seat 1/2) | George Barclay | |
| Bridport (seat 2/2) | Sir Evan Nepean, Bt | |
| Bristol (seat 1/2) | Charles Bragge | |
| Bristol (seat 2/2) | Evan Baillie | |
| Buckingham (seat 1/2) | Lord Proby – died Replaced by Lord Proby 1805 – resigned Replaced by Earl Percy 1806 | |
| Buckingham (seat 2/2) | Thomas Grenville | |
| Buckinghamshire (seat 1/2) | Richard Temple Nugent Grenville, Earl Temple | |
| Buckinghamshire (seat 2/2) | Marquess of Titchfield | Tory |
| Bury St Edmunds (seat 1/2) | Lord Charles FitzRoy | |
| Bury St Edmunds (seat 2/2) | Lord Hervey – ennobled Replaced by The Lord Templetown 1803 | |
| Buteshire (seat 0/0) | Alternated with Caithness. No representation in this Parliament. |
|
| Caernarvon Boroughs (seat 1/1) | Hon. Edward Paget | |
| Caernarvonshire (seat 1/1) | Robert Williams | |
| Caithness (seat 1/1) | John Sinclair | Whig |
| Callington (seat 1/2) | John Inglett-Fortescue resigned Replaced by Ambrose St John 1803 | |
| Callington (seat 2/2) | Paul Orchard | |
| Calne (seat 1/2) | Joseph Jekyll | |
| Calne (seat 2/2) | Lord Henry Petty – resigned Replaced by Osborne Markham 1806 | Whig |
| Cambridge (seat 1/2) | Edward Finch | Tory |
| Cambridge (seat 2/2) | Robert Manners | Tory |
| Cambridgeshire (seat 1/2) | Lord Charles Manners | |
| Cambridgeshire (seat 2/2) | Charles Philip Yorke | Tory |
| Cambridge University (seat 1/2) | William Pitt the Younger – died Replaced by Lord Henry Petty | Whig |
| Cambridge University (seat 2/2) | Earl of Euston | Whig |
| Camelford (seat 1/2) | Robert Adair | Whig |
| Camelford (seat 2/2) | John Fonblanque | Whig |
| Canterbury (seat 1/2) | John Baker | Whig |
| Canterbury (seat 2/2) | George Watson | |
| Cardiff Boroughs (seat 1/1) | Lord William Stuart | Tory |
| Cardigan Boroughs (seat 1/1) | Hon. John Vaughan | |
| Cardiganshire (seat 1/1) | Thomas Johnes | |
| Carlisle (seat 1/2) | Walter Spencer-Stanhope | Tory |
| Carlisle (seat 2/2) | John Christian Curwen Bt | Whig |
| Carlow (seat 1/1) | Charles Montagu Ormsby – appointed to office Replaced by Michael Symes 1806 | |
| County Carlow (seat 1/2) | David Latouche | Whig |
| County Carlow (seat 2/2) | Walter Bagenal | Whig |
| Carmarthen (seat 1/1) | John George Philipps resigned Replaced by Sir William Paxton 1803 | |
| Carmarthenshire (seat 1/1) | James Hamlyn Williams | |
| Carrickfergus (seat 1/1) | Lord Spencer Chichester | |
| Cashel (seat 1/1) | Rt Hon. William Wickham | Whig |
| Castle Rising (seat 1/2) | Peter Isaac Thellusson | |
| Castle Rising (seat 2/2) | Charles Bagot-Chester | |
| County Cavan (seat 1/2) | Francis Saunderson | Whig |
| County Cavan (seat 2/2) | Nathaniel Sneyd | Tory |
| Cheshire (seat 1/2) | William Egerton – died Replaced by Davies Davenport 1806 | |
| Cheshire (seat 2/2) | Thomas Cholmondeley | |
| Chester (seat 1/2) | Viscount Belgrave – ennobled Replaced by Richard Erle-Drax-Grosvenor 1802 | |
| Chester (seat 2/2) | Thomas Grosvenor | |
| Chichester (seat 1/2) | George White-Thomas | |
| Chichester (seat 2/2) | Thomas Steele | |
| Chippenham (seat 1/2) | James Dawkins | |
| Chippenham (seat 2/2) | Charles Brooke – unseated on petition Replaced by John Maitland 1803 | |
| Chipping Wycombe (seat 1/2) | Sir Francis Baring, Bt | |
| Chipping Wycombe (seat 2/2) | Sir John Dashwood-King, Bt | |
| Christchurch (seat 1/2) | William Sturges Bourne | Tory |
| Christchurch (seat 2/2) | George Rose | |
| Cirencester (seat 1/2) | Michael Hicks-Beach | |
| Cirencester (seat 2/2) | Sir Robert Preston, Bt | |
| Clackmannanshire (seat 0/0) | Alternated with Kinross-shire. Unrepresented in this Parliament |
| County Clare (seat 1/2) | Hon. Francis Nathaniel Burton | |
| County Clare (seat 2/2) | Sir Edward O'Brien, 4th Baronet | Whig |
| Clitheroe (seat 1/2) | Hon. John Cust | Tory |
| Clitheroe (seat 2/2) | Hon. Robert Curzon | Tory |
| Clonmel (seat 1/1) | Rt Hon. William Bagwell 1801 | |
| Cockermouth (seat 1/2) | James Graham – resigned Replaced by Viscount Garlies 1805 | Tory Tory |
| Cockermouth (seat 2/2) | Robert Plumer Ward | Tory |
| Colchester (seat 1/2) | Robert Thornton | |
| Colchester (seat 2/2) | John Denison | |
| Coleraine | Walter Jones | Tory |
| Corfe Castle (seat 1/2) | Nathaniel Bond | |
| Corfe Castle (seat 2/2) | Henry Bankes | |
| Cork (seat 1/2) | Hon. Christopher Hely-Hutchinson | |
| Cork (seat 2/2) | Mountifort Longfield | Tory |
| County Cork (seat 1/2) | Viscount Boyle | |
| County Cork (seat 2/2) | Robert Uniacke Fitzgerald | |
| Cornwall (seat 1/2) | Francis Gregor | Tory |
| Cornwall (seat 2/2) | Sir William Lemon, Bt | Whig |
| Coventry (seat 1/2) | Francis William Barlow – died Replaced by William Mills 1805 | |
| Coventry (seat 2/2) | Nathaniel Jefferys – election void Replaced by Peter Moore 1803 | |
| Cricklade (seat 1/2) | Lord Portchester | |
| Cricklade (seat 2/2) | Thomas Estcourt | |
| Cromartyshire (seat 1/1) | Alexander Mackenzie Fraser | |
| Cumberland (seat 1/2) | Sir Henry Fletcher, Bt | Whig |
| Cumberland (seat 2/2) | John Lowther | Tory |
|
| Dartmouth (seat 1/2) | Edmund Bastard | |
| Dartmouth (seat 2/2) | Arthur Howe Holdsworth | |
| Denbigh Boroughs (seat 1/1) | Hon. Frederick West | |
| Denbighshire (seat 1/1) | Sir Watkin Williams-Wynn, 5th Baronet | |
| Derby (seat 1/2) | George Walpole | |
| Derby (seat 2/2) | Edward Coke | |
| Derbyshire (seat 1/2) | George Cavendish | Whig |
| Derbyshire (seat 2/2) | Edward Miller Mundy | Tory |
| Devizes (seat 1/2) | Joshua Smith | |
| Devizes (seat 2/2) | Henry Addington – ennobled Replaced by Thomas Grimston Estcourt 1805 | Tory
|
| Devon (seat 1/2) | John Pollexfen Bastard | Tory |
| Devon (seat 2/2) | Sir Lawrence Palk, Bt | |
| County Donegal (seat 1/2) | Sir James Stewart, Bt | |
| County Donegal (seat 2/2) | Viscount Sudley | Tory |
| Dorchester (seat 1/2) | Hon. Cropley Ashley-Cooper | |
| Dorchester (seat 2/2) | Francis Fane | |
| Dorset (seat 1/2) | Francis John Browne | |
| Dorset (seat 2/2) | William Morton Pitt | |
| Dover (seat 1/2) | John Spencer Smith | |
| Dover (seat 2/2) | John Trevanion | |
| County Down (seat 1/2) | Viscount Castlereagh – appointed to office Replaced by John Meade | Tory
|
| County Down (seat 2/2) | Francis Savage | |
| Downpatrick (seat 1/1) | Charles Stewart Hawthorne | |
| Downton (seat 1/2) | Hon. Edward Bouverie resigned Replaced by The Lord de Blaquiere 1803 | Tory |
| Downton (seat 2/2) | Hon. John William Ward resigned Replaced by Viscount Marsham 1803 | Tory Tory |
| Drogheda (seat 1/1) | Edward Hardman | |
| Droitwich (seat 1/2) | Sir Edward Winnington, Bt – died Replaced by Thomas Foley 1805 | Whig Whig |
| Droitwich (seat 2/2) | Andrew Foley | Whig |
| Dublin (seat 1/2) | John Claudius Beresford – resigned Sir Robert Shaw, Bt 1804 | Tory Tory |
| Dublin (seat 2/2) | John La Touche | Whig |
| County Dublin (seat 1/2) | Hans Hamilton | Tory |
| County Dublin (seat 2/2) | Frederick John Falkiner | Tory |
| Dublin University (seat 1/1) | Hon. George Knox | Tory |
| Dumfries Burghs (seat 1/1) | Charles Hope – resigned Replaced by Viscount Stopford 1803 | |
| Dumfriesshire (seat 1/1) | Sir Robert Laurie, Bt died Replaced by Sir William Johnstone Hope 1804 | |
| Dunbartonshire (seat 1/1) | Sir James Colquhoun, 3rd Bt – resigned Replaced by Henry Glassford 1806 | |
| Dundalk (seat 1/1) | Richard Archdall | Tory |
| Dungannon (seat 1/1) | Hon. George Knox – Sat for Dublin University Replaced by Sir Charles Hamilton, Bt 1803 | |
| Dungarvan (seat 1/1) | William Greene | Whig |
| Dunwich (seat 1/2) | Snowdon Barne | |
| Dunwich (seat 2/2) | The Lord Huntingfield | |
| Durham (City of) (seat 1/2) | Richard Wharton – election void Replaced by Robert Eden Duncombe Shafto 1804 | Tory
|
| Durham (City of) (seat 2/2) | Ralph John Lambton | Whig |
| Durham (County) (seat 1/2) | Rowland Burdon | Tory |
| Durham (County) (seat 2/2) | Ralphe Milbanke | Whig |
| Dysart Burghs (seat 1/1) | Sir James St Clair-Erskine – ennobled Replaced by Sir Robert Dallas 1805 | |
|
| East Grinstead (seat 1/2) | Sir Henry Strachey | |
| East Grinstead (seat 2/2) | Daniel Giles | |
| East Looe (seat 1/2) | Sir Edward Buller | Tory |
| East Looe (seat 2/2) | John Buller | Tory |
| East Retford (seat 1/2) | Lt Colonel Robert Craufurd | |
| East Retford (seat 2/2) | John Jaffray | |
| Edinburgh (seat 1/1) | Henry Dundas – ennobled Replaced by Charles Hope 1803 – appointed to office Replaced by George Abercromby 1805 | Tory Tory Whig |
| Edinburghshire (seat 1/1) | Robert Saunders Dundas | Tory |
| Elgin Burghs (seat 1/1) | Francis Ogilvy-Grant | |
| Elginshire (seat 1/1) | James Brodie | |
| Ennis | Rt Hon. James Fitzgerald | Tory |
| Enniskillen | Rt Hon. John Beresford – sat for Waterford Replaced by William Burroughs 1802 – appointed judge Replaced by John King 1806 – resigned Replaced by William Henry Fremantle 1806 | Tory Tory Tory Tory |
| Essex (seat 1/2) | Colonel John Bullock | Whig |
| Essex (seat 2/2) | Eliab Harvey | |
| Evesham (seat 1/2) | Patrick Craufurd Bruce | |
| Evesham (seat 2/2) | Charles Thellusson | |
| Exeter (seat 1/2) | Sir Charles Warwick Bampfylde | Whig |
| Exeter (seat 2/2) | James Buller | |
| Eye (seat 1/2) | James Cornwallis | Tory |
| Eye (seat 2/2) | Hon. William Cornwallis | |
|
| County Fermanagh (seat 1/2) | Mervyn Archdall | Tory |
| County Fermanagh (seat 2/2) | Viscount Cole – ennobled Replaced by Hon. Lowry Cole 1803 | Tory
|
| Fife (seat 1/1) | Sir William Erskine, Bt. | |
| Flint Boroughs (seat 1/1) | Watkin Williams | |
| Flintshire (seat 1/1) | Sir Thomas Mostyn | |
| Forfarshire (seat 1/1) | Sir David Carnegie, Bt. – died Replaced by William Maule 1805 | |
| Fowey (seat 1/2) | Reginald Pole Carew | Tory |
| Fowey (seat 2/2) | Edward Golding – sat elsewhere Replaced by Robert Wigram (senior) 1802 | Tory Tory |
|
| Galway | Denis Bowes Daly – resigned Replaced by James Daly 1805 | |
| County Galway (seat 1/2) | Richard Le Poer Trench – resigned Replaced by Denis Bowes Daly | Tory Whig |
| County Galway (seat 2/2) | Richard Martin | Ind |
| Gatton (seat 1/2) | Sir Mark Wood, Bt | |
| Gatton (seat 2/2) | James Dashwood – resigned Replaced by Philip Dundas 1803 – resigned Replaced by William Garrow 1805 | |
| Glamorganshire (seat 1/1) | Thomas Wyndham | |
| Glasgow Burghs (seat 1/1) | Alexander Houstoun Replaced by Boyd Alexander 1803 | |
| Gloucester (seat 1/2) | Henry Thomas Howard Replaced by Robert Morris 1805 | Whig |
| Gloucester (seat 2/2) | John Pitt – died Replaced by Robert Morris 1805 | Tory Whig |
| Gloucestershire (seat 1/2) | Marquess of Worcester – ennobled Replaced by Lord Edward Somerset 1803 | Tory Tory |
| Gloucestershire (seat 2/2) | Hon. George Cranfield Berkeley | Whig |
| Grampound (seat 1/2) | Sir Christopher Hawkins, Bt | Tory |
| Grampound (seat 2/2) | Benjamin Hobhouse | |
| Grantham (seat 1/2) | Thomas Thoroton | |
| Grantham (seat 2/2) | Sir William Earle Welby, Bt | |
| Great Bedwyn (seat 1/2) | Robert John Buxton | |
| Great Bedwyn (seat 2/2) | Sir Nathaniel Dance-Holland, Bt | |
| Great Grimsby (seat 1/2) | Ayscoghe Boucherett – resigned Replaced by Hon. Charles Anderson-Pelham 1803 | |
| Great Grimsby (seat 2/2) | Colonel John Henry Loft Replaced by William Mellish 1803 | |
| Great Marlow (seat 1/2) | Thomas Williams – died Replaced by Pascoe Grenfell 1802 | |
| Great Marlow (seat 2/2) | Owen Williams | |
| Great Yarmouth (seat 1/2) | Captain Sir Thomas Troubridge | |
| Great Yarmouth (seat 2/2) | Thomas Jervis | |
| Guildford (seat 1/2) | Viscount Cranley | Whig |
| Guildford (seat 2/2) | Chapple Norton | |
|
| Haddington Burghs (seat 1/1) | Hon. Thomas Maitland – appointed to office Replaced by Sir John Hamilton-Dalrymple, 5th Baronet 1805 – resigned Replaced by Henry Erskine 1806 |
Whig |
| Haddingtonshire (seat 1/1) | Charles Hope | |
| Hampshire (seat 1/2) | Sir William Heathcote, Bt | |
| Hampshire (seat 2/2) | William John Chute | |
| Harwich (seat 1/2) | Thomas Myers Replaced by James Adams 1803 | |
| Harwich (seat 2/2) | John Robinson – died Replaced by John Hiley Addington 1803 | |
| Haslemere (seat 1/2) | George Wood | |
| Haslemere (seat 2/2) | Richard Penn | |
| Hastings (seat 1/2) | The Lord Glenbervie | |
| Hastings (seat 2/2) | George William Gunning | |
| Haverfordwest (seat 1/1) | The 2nd Baron Kensington 1802 | |
| Hedon (seat 1/2) | George Johnstone | |
| Hedon (seat 2/2) | Christopher Atkinson | |
| Helston (seat 1/2) | Viscount Fitzharris – appointed to office Replaced by Davies Giddy 1804 – resigned Replaced by Sir John Shelley, Bt 1806 | Tory |
| Helston (seat 2/2) | John Penn resigned Replaced by Viscount Primrose 1805 | |
| Hereford (seat 1/2) | Thomas Powell Symonds | |
| Hereford (seat 2/2) | John Scudamore jnr – died Replaced by Richard Philip Scudamore 1805 | |
| Herefordshire (seat 1/2) | Sir George Cornewall, Bt | Tory |
| Herefordshire (seat 2/2) | John Cotterell – declared void Replaced by John Matthews 1803 | |
| Hertford (seat 1/2) | Hon. Edward Spencer Cowper | Whig |
| Hertford (seat 2/2) | Nicolson Calvert | Whig |
| Hertfordshire (seat 1/2) | William Plumer | |
| Hertfordshire (seat 2/2) | Hon. Peniston Lamb – died Replaced by William Baker 1805 | Tory |
| Heytesbury (seat 1/2) | Charles Abbot – sat for Woodstock Replaced by Dr Charles Moore 1802 | |
| Heytesbury (seat 2/2) | Viscount Kirkwall | |
| Higham Ferrers (seat 1/1) | Francis Ferrand Foljambe | |
| Hindon (seat 1/2) | Thomas Wallace | |
| Hindon (seat 2/2) | John Pedley | |
| Honiton (seat 1/2) | Sir John Honywood – died Replaced by Richard Bateman-Robson 1806 | |
| Honiton (seat 2/2) | George Shum – died Replaced by Augustus Cavendish-Bradshaw 1805 | |
| Horsham (seat 1/2) | Edward Hilliard | |
| Horsham (seat 2/2) | Patrick Ross – died Replaced by Viscount FitzHarris 1804 | |
| Huntingdon (seat 1/2) | William Henry Fellowes | |
| Huntingdon (seat 2/2) | John Calvert | |
| Huntingdonshire (seat 1/2) | Viscount Hinchingbrooke | |
| Huntingdonshire (seat 2/2) | Lord Frederick Montagu | |
| Hythe (seat 1/2) | Matthew White | |
| Hythe (seat 2/2) | Thomas Godfrey | |
|
| Ilchester (seat 1/2) | William Hunter – declared void Replaced by Charles Brooke 1803 | |
| Ilchester (seat 2/2) | Thomas Plummer – declared void Replaced by Sir William Manners, Bt 1803 – declared void Replaced by John Manners 1804 | Tory
|
| Inverness Burghs (seat 1/1) | Alexander Penrose Cumming-Gordon Replaced by George Cumming 1803 |
|
| Inverness-shire (seat 1/1) | Charles Grant (senior) | Pittite/Tory |
| Ipswich (seat 1/2) | Sir Andrew Hamond, Bt | |
| Ipswich (seat 2/2) | Charles Alexander Crickitt – died Replaced by William Middleton 1803 | |
|
| Kent (seat 1/2) | Filmer Honywood | Whig |
| Kent (seat 2/2) | Sir William Geary, Bt | Tory |
| County Kerry (seat 1/2) | James Crosbie | Tory |
| County Kerry (seat 2/2) | Rt Hon. Maurice Fitzgerald | Whig |
| County Kildare (seat 1/2) | Lord Robert Stephen FitzGerald | Whig |
| County Kildare (seat 2/2) | Robert La Touche | |
| Kilkenny | Hon. Charles Harward Butler | Whig |
| County Kilkenny (seat 1/2) | Rt Hon. William Brabazon Ponsonby – ennobled Replaced by George Ponsonby 1806 | Whig |
| County Kilkenny (seat 2/2) | Hon. James Wandesford Butler | Whig |
| Kincardineshire (seat 1/1) | Sir John Wishart-Belsches, Bt | |
| King's County (seat 1/2) | Sir Lawrence Parsons, Bt | |
| King's County (seat 2/2) | Thomas Bernard | |
| King's Lynn (seat 1/2) | Hon. Horatio Walpole | |
| King's Lynn (seat 2/2) | Sir Martin ffolkes, Bt | |
| Kingston upon Hull (seat 1/2) | Samuel Thornton | |
| Kingston upon Hull (seat 2/2) | John Staniforth | |
| Kinross-shire (seat1/1) | William Douglas Maclean Clephane – appointed to office Replaced by David Clephane 1803 | |
| Kinsale | Samuel Campbell Rowley – resigned Replaced by Henry Martin 1806 | |
| Kirkcudbright Stewartry (seat 1/1) | Patrick Heron Replaced by Montgomery Granville John Stewart 1803 | Whig Tory |
| Knaresborough (seat 1/2) | James Hare – died Replaced by William Cavendish 1804 resigned no return made due to riot 1804 Replaced by Viscount Duncannon 1805 | Whig Whig>br> Whig |
| Knaresborough (seat 2/2) | Lord John Townshend | Whig |
|
| Lanarkshire (seat 1/1) | Lord Archibald Hamilton | Whig |
| Lancashire (seat 1/2) | Thomas Stanley | |
| Lancashire (seat 2/2) | John Blackburne | |
| Lancaster (seat 1/2) | Alexander Hamilton, 10th Duke of Hamilton | Whig |
| Lancaster (seat 2/2) | John Dent | |
| Launceston (seat 1/2) | Richard Bennet | Whig |
| Launceston (seat 2/2) | James Brogden | Tory |
| Leicester (seat 1/2) | Thomas Babington | |
| Leicester (seat 2/2) | Samuel Smith | |
| Leicestershire (seat 1/2) | Sir Edmund Cradock-Hartopp, Bt | |
| Leicestershire (seat 2/2) | George Anthony Legh Keck | |
| County Leitrim (seat 1/2) | Viscount Clements – ennobled Replaced by Henry John Clements 1805 | Whig Tory |
| County Leitrim (seat 2/2) | Peter La Touche | |
| Leominster (seat 1/2) | John Lubbock | |
| Leominster (seat 2/2) | Charles Kinnaird – ennobled Replaced by William Lamb 1806 | Whig |
| Lewes (seat 1/2) | Henry Shelley | |
| Lewes (seat 2/2) | Lord Francis Osborne | |
| Lichfield (seat 1/2) | Sir John Wrottesley, Bt | Whig |
| Lichfield (seat 2/2) | Thomas Anson – ennobled Replaced by Sir George Anson 1806 | Whig |
| Limerick | Charles Vereker | Tory |
| County Limerick (seat 1/2) | Charles Silver Oliver | |
| County Limerick (seat 2/2) | William Odell | |
| Lincoln (seat 1/2) | Humphrey Sibthorp | |
| Lincoln (seat 2/2) | Richard Ellison | |
| Lincolnshire (seat 1/2) | Sir Gilbert Heathcote, Bt | |
| Lincolnshire (seat 2/2) | Charles Chaplin | |
| Linlithgow Burghs (seat 1/1) | William Dickson | |
| Linlithgowshire (seat 1/1) | Sir Alexander Hope | |
| Lisburn | Earl of Yarmouth | Tory |
| Liskeard (seat 1/2) | William Eliot | Tory |
| Liskeard (seat 2/2) | Hon. Hon. John Eliot double return Replaced by William Huskisson 1804 | Tory |
| Liverpool (seat 1/2) | Isaac Gascoyne | Tory |
| Liverpool (seat 2/2) | Banastre Tarleton | Tory |
| London (City of) (seat 1/4) | William Curtis | Tory |
| London (City of) (seat 2/4) | Sir John William Anderson, Bt | Tory |
| London (City of) (seat 3/4) | Sir Charles Price | Tory |
| London (City of) (seat 4/4) | Harvey Christian Combe | Whig |
| Londonderry | Sir George Hill, Bt | Tory |
| County Londonderry (seat 1/2) | Hon. Charles William Stewart | Tory |
| County Londonderry (seat 2/2) | Lord George Thomas Beresford | Tory |
| County Longford (seat 1/2) | Sir Thomas Fetherston, Bt | |
| County Longford (seat 2/2) | Hon. Thomas Gleadowe-Newcomen | |
| Lostwithiel (seat 1/2) | Hans Sloane | |
| Lostwithiel (seat 2/2) | William Dickinson | |
| County Louth (seat 1/2) | John Foster | |
| County Louth (seat 2/2) | William Charles Fortescue | |
| Ludgershall (seat 1/2) | Earl of Dalkieth – resigned Replaced by Magens Dorrien-Magens 1804 | Tory Tory |
| Ludgershall (seat 2/2) | Thomas Everett | Tory |
| Ludlow (seat 1/2) | Richard Payne Knight | |
| Ludlow (seat 2/2) | Robert Clive | |
| Lyme Regis (seat 1/2) | Henry Fane | Tory |
| Lyme Regis (seat 2/2) | Thomas Fane – resigned Replaced by Lord Burghersh 1806 | Tory |
| Lymington (seat 1/2) | William Manning | |
| Lymington (seat 2/2) | Harry Burrard – resigned Replaced by John Kingston 1802 | |
|
| Maidstone (seat 1/2) | Sir Matthew Bloxham | |
| Maidstone (seat 2/2) | John Hodsdon Durand | |
| Maldon (seat 1/2) | Joseph Holden Strutt | |
| Maldon (seat 2/2) | Charles Callis Western | |
| Mallow | Denham Jephson | Whig |
| Malmesbury (seat 1/2) | Claude Scott | |
| Malmesbury (seat 2/2) | Samuel Scott, Bt | |
| Malton (seat 1/2) | Charles Lawrence Dundas resigned Replaced by Henry Grattan 1805 | Whig Whig |
| Malton (seat 2/2) | Bryan Cooke | Whig |
| Marlborough (seat 1/2) | Charles Bruce, Lord Bruce | |
| Marlborough (seat 2/2) | James Henry Leigh | |
| County Mayo (seat 1/2) | Rt Hon. Denis Browne | |
| County Mayo (seat 2/2) | Henry Dillon-Lee | |
| County Meath (seat 1/2) | Thomas Cherburgh Bligh | |
| County Meath (seat 2/2) | Sir Marcus Somerville, Bt | |
| Merionethshire (seat 1/1) | Sir Robert Williames Vaughan | Tory |
| Middlesex (seat 1/2) | George Byng | Tory |
| Middlesex (seat 2/2) | Sir Francis Burdett, Bt – void Replaced by George Boulton Mainwaring 1804 – void Replaced by Sir Francis Burdett, Bt 1805 – void Replaced by George Boulton Mainwaring 1806 | Whig Tory Whig Tory |
| Midhurst (seat 1/2) | George Smith | |
| Midhurst (seat 2/2) | Samuel Smith – sat for Leicester Replaced by Edmund Turnor | |
| Milborne Port (seat 1/2) | Henry Paget, Lord Paget – resigned Replaced by Captain Charles Paget 1804 | |
| Milborne Port (seat 2/2) | Hugh Leycester | |
| Minehead (seat 1/2) | John Patteson | Tory |
| Minehead (seat 2/2) | John Fownes Luttrell | Tory |
| Mitchell (seat 1/2) | Robert Dallas – appointed to office Replaced by Earl of Dalkeith 1805 | Tory
|
| Mitchell (seat 2/2) | Robert Sharpe Ainslie | |
| County Monaghan (seat 1/2) | Richard Dawson | |
| County Monaghan (seat 2/2) | Charles Powell Leslie II, | |
| Monmouth Boroughs (seat 1/1) | Lord Charles Somerset | |
| Monmouthshire (seat 1/2) | Charles Morgan (formerly Gould) | |
| Monmouthshire (seat 2/2) | James Rooke – died Replaced by Capt Lord Arthur John Henry Somerset 1805 | |
| Montgomery (seat 1/1) | Whitshed Keene | |
| Montgomeryshire (seat 1/1) | Charles Williams-Wynn | Tory |
| Morpeth (seat 1/2) | William Ord | Whig |
| Morpeth (seat 2/2) | Viscount Morpeth | |
|
| Nairnshire (seat 0/0) | Alternated with Cromartyshire. No representation in 1802 |
| Newark (seat 1/2) | Thomas Manners-Sutton – appointed to office Replaced by Henry Willoughby 1805 | Tory Tory |
| Newark (seat 2/2) | Charles Morice Pole | |
| Newcastle-under-Lyme (seat 1/2) | Sir Robert Lawley | |
| Newcastle-under-Lyme (seat 2/2) | Edward Bootle-Wilbraham | |
| Newcastle-upon-Tyne (seat 1/2) | Charles John Brandling | Tory |
| Newcastle-upon-Tyne (seat 2/2) | Sir Matthew White Ridley, 2nd Baronet | Whig |
| Newport (Cornwall) (seat 1/2) | William Northey | Tory |
| Newport (Cornwall) (seat 2/2) | Joseph Richardson – died Replaced by Edward Morris 1803 | Whig |
| Newport (Isle of Wight) (seat 1/2) | John Blackburn | |
| Newport (Isle of Wight) (seat 2/2) | Richard Gervas Ker | |
| Newry | Rt Hon. Isaac Corry | Whig |
| New Radnor Boroughs (seat 1/1) | Richard Price | Tory |
| New Romney (seat 1/2) | Manasseh Lopes | |
| New Romney (seat 2/2) | John Willett Willett | |
| New Ross | Charles Tottenham (I) – resigned Replaced by Ponsonby Tottenham 1805 | |
| New Shoreham (seat 1/2) | Sir Cecil Bisshopp, Bt | |
| New Shoreham (seat 2/2) | Timothy Shelley | |
| Newton (Lancashire) (seat 1/2) | Peter Patten | |
| Newton (Lancashire) (seat 2/2) | Thomas Brooke | |
| Newtown (Isle of Wight) (seat 1/2) | Sir Robert Barclay | Whig |
| Newtown (Isle of Wight) (seat 2/2) | Charles Chapman – resigned Replaced by James Paull 1803 | Whig Whig |
| New Windsor (seat 1/2) | Hon. Robert Fulke Greville | Tory |
| New Windsor (seat 2/2) | John Williams election void Arthur Vansittart 1804 | Tory Tory |
| New Woodstock (seat 1/2) | Sir Henry Dashwood, Bt | |
| New Woodstock (seat 2/2) | Charles Abbot | Speaker |
| Norfolk (seat 1/2) | Thomas Coke | Whig |
| Norfolk (seat 2/2) | Jacob Astley | |
| Northallerton (seat 1/2) | Hon. Edward Lascelles | Tory |
| Northallerton (seat 2/2) | Henry Peirse | Whig |
| Northampton (seat 1/2) | Hon. Spencer Perceval | |
| Northampton (seat 2/2) | Hon. Edward Bouverie | |
| Northamptonshire (seat 1/2) | Francis Dickins | |
| Northamptonshire (seat 2/2) | William Ralph Cartwright | |
| Northumberland (seat 1/2) | Charles Grey | |
| Northumberland (seat 2/2) | Thomas Richard Beaumont | |
| Norwich (seat 1/2) | Robert Fellowes | |
| Norwich (seat 2/2) | William Smith | Radical |
| Nottingham (seat 1/2) | Joseph Birch – unseated on petition Replaced by Daniel Parker Coke 1803 | |
| Nottingham (seat 2/2) | Sir John Borlase Warren, Bt | |
| Nottinghamshire (seat 1/2) | Lord William Bentinck – appointed to office Replaced by Anthony Hardolph Eyre 1803 | Whig
|
| Nottinghamshire (seat 2/2) | Hon. Charles Pierrepont | |
|
| Okehampton (seat 1/2) | Henry Holland, junior | Whig |
| Okehampton (seat 2/2) | James Charles Stuart Strange – resigned Replaced by Viscount Althorp 1804 | Whig Whig |
| Old Sarum (seat 1/2) | Nicholas Vansittart | Tory |
| Old Sarum (seat 2/2) | Henry Alexander | Tory |
| Orford (seat 1/2) | Lord Robert Seymour | Tory |
| Orford (seat 2/2) | James Trail | Tory |
| Orkney and Shetland (seat 1/1) | Robert Honyman | |
| Oxford (seat 1/2) | Francis Burton | |
| Oxford (seat 2/2) | John Atkyns-Wright | |
| Oxfordshire (seat 1/2) | Lord Francis Spencer | Whig |
| Oxfordshire (seat 2/2) | John Fane | Tory |
| Oxford University (seat 1/2) | Sir William Scott | Tory |
| Oxford University (seat 2/2) | Sir William Dolben, Bt | Tory |
|
| Peeblesshire (seat 1/1) | James Montgomery | |
| Pembroke Boroughs (seat 1/1) | Hugh Barlow | Whig |
| Pembrokeshire (seat 1/1) | Richard Philipps, 1st Baron Milford | |
| Penryn (seat 1/2) | Sir Stephen Lushington, Bt | Tory |
| Penryn (seat 2/2) | Sir John Nicholl | Tory |
| Perth Burghs (seat 1/1) | David Scott – died Replaced by Sir David Wedderburn, Bt 1805 | Tory |
| Perthshire (seat 1/1) | Thomas Graham | |
| Peterborough (seat 1/2) | French Laurence | Whig |
| Peterborough (seat 2/2) | William Elliot | Whig |
| Petersfield (seat 1/2) | Hylton Jolliffe | |
| Petersfield (seat 2/2) | Sir John Sinclair, 1st Baronet Replaced by William Draper Best 1802 | |
| Plymouth (seat 1/2) | Philip Langmead – resigned Replaced by Thomas Tyrwhitt 1806 | |
| Plymouth (seat 2/2) | William Elford | |
| Plympton Erle (seat 1/2) | Edward Golding | Addingtonian |
| Plympton Erle (seat 2/2) | Philip Metcalfe | Addingtonian |
| Pontefract (seat 1/2) | Richard Benyon | |
| Pontefract (seat 2/2) | John Smyth | |
| Poole (seat 1/2) | George Garland | |
| Poole (seat 2/2) | John Jeffery | |
| Portarlington | Henry Brook Parnell – resigned Replaced by Thomas Tyrwhitt 1802 – resigned Replaced by John Langston 1806 | Whig
|
| Portsmouth (seat 1/2) | John Markham | Whig |
| Portsmouth (seat 2/2) | Hon. Thomas Erskine appointed to office Replaced by Hon. David Erskine 1806 | Whig
|
| Preston (seat 1/2) | Lord Stanley | Whig |
| Preston (seat 2/2) | John Horrocks died Replaced by Samuel Horrocks | Tory Tory |
|
| Queenborough (seat 1/2) | John Prinsep | Whig |
| Queenborough (seat 2/2) | George Peter Moore – resigned Replaced by Sir Samuel Romilly 1806 | Whig Whig |
| Queen's County (seat 1/2) | by Hon. William Wellesley-Pole | |
| Queen's County (seat 2/2) | Sir Eyre Coote – appointed to office Replaced by Henry Brooke Parnell 1806 | Whig |
|
| Radnorshire (seat 1/1) | Walter Wilkins | Whig |
| Reading (seat 1/2) | Charles Shaw-Lefevre | |
| Reading (seat 2/2) | Francis Annesley | |
| Reigate (seat 1/2) | Hon. John Somers Cocks – ennobled Replaced by Philip James Cocks 1806 | |
| Reigate (seat 2/2) | Joseph Sydney Yorke | Tory |
| Renfrewshire (seat 1/1) | Boyd Alexander | |
| Richmond (Yorkshire) (seat 1/2) | Arthur Shakespeare | Whig |
| Richmond (Yorkshire) (seat 2/2) | George Heneage Lawrence Dundas – resigned Replaced by Charles Lawrence Dundas 1806 | Whig |
| Ripon (seat 1/2) | Sir James Graham, Bt | Tory |
| Ripon (seat 2/2) | John Heathcote | Tory |
| Rochester (seat 1/2) | Captain Sir Sidney Smith | |
| Rochester (seat 2/2) | James Hulkes | |
| County Roscommon (seat 1/2) | Arthur French | Whig |
| County Roscommon (seat 2/2) | Edward King | Whig |
| Ross-shire (seat 1/1) | Sir Charles Lockhart-Ross, Bt. | |
| Roxburghshire (seat 1/1) | Sir George Douglas | |
| Rutland (seat 1/2) | Gerard Noel Edwardes | Whig |
| Rutland (seat 2/2) | The Lord Carbery – died Replaced by The Lord Henniker 1805 |
|
| Rye (seat 1/2) | Thomas Davis Lamb – resigned Replaced by Major General the Hon. Sir Arthur Wellesley | Tory Tory |
| Rye (seat 2/2) | Hon. Robert Banks Jenkinson ennobled Replaced by Sir Charles Talbot 1803 | Tory
|
|
| St Albans (seat 1/2) | William Stephen Poyntz | Whig |
| St Albans (seat 2/2) | Hon. James Grimston | Tory |
| St Germans (seat 1/2) | Lord Binning | Tory |
| St Germans (seat 2/2) | James Langham | |
| St Ives (seat 1/2) | William Praed | |
| St Ives (seat 2/2) | Jonathan Raine | |
| St Mawes (seat 1/2) | Sir William Young, Bt | Tory |
| St Mawes (seat 2/2) | William Windham | Tory |
| Salisbury (seat 1/2) | Viscount Folkestone | |
| Salisbury (seat 2/2) | William Hussey | |
| Saltash (seat 1/2) | Matthew Russell | |
| Saltash (seat 2/2) | Robert Deverell | |
| Sandwich (seat 1/2) | Sir Philip Stephens, Bt | |
| Sandwich (seat 2/2) | Sir Horatio Mann, Bt | |
| Scarborough (seat 1/2) | Lord Robert Manners | Tory |
| Scarborough (seat 2/2) | Hon. Edmund Phipps | Tory |
| Seaford (seat 1/2) | Charles Rose Ellis | Tory |
| Seaford (seat 2/2) | Richard Joseph Sullivan – died Replaced by John Leach 1806 | Tory |
| Selkirkshire (seat 1/1) | John Rutherford | |
| Shaftesbury (seat 1/2) | Edward Loveden Loveden | Whig |
| Shaftesbury (seat 2/2) | Robert Hurst | |
| Shrewsbury (seat 1/2) | Sir William Pulteney, Bt – died Replaced by John Hill 1805 | Whig Tory |
| Shrewsbury (seat 2/2) | Hon. William Hill | Tory |
| Shropshire (seat 1/2) | John Kynaston (later Powell) | |
| Shropshire (seat 2/2) | Sir Richard Hill, Bt | |
| Sligo | Owen Wynne – resigned Replaced by Col. George Canning 1806 | Tory Tory |
| County Sligo (seat 1/2) | Joshua Edward Cooper | Tory |
| County Sligo (seat 2/2) | Charles O'Hara | Tory |
| Somerset (seat 1/2) | William Dickinson – died Replaced by Thomas Lethbridge | Tory Tory |
| Somerset (seat 2/2) | William Gore-Langton | Whig |
| Southampton (seat 1/2) | George Henry Rose | |
| Southampton (seat 2/2) | James Amyatt | |
| Southwark (seat 1/2) | Henry Thornton | Independent |
| Southwark (seat 2/2) | George Tierney | Whig |
| Stafford (seat 1/2) | Edward Monckton | Tory |
| Stafford (seat 2/2) | Richard Brinsley Sheridan | Whig |
| Staffordshire (seat 1/2) | Sir Edward Littleton, Bt | Whig |
| Staffordshire (seat 2/2) | Lord Granville Leveson-Gower | Whig |
| Stamford (seat 1/2) | Albemarle Bertie | Tory |
| Stamford (seat 2/2) | John Leland | Tory |
| Steyning (seat 1/2) | James Lloyd – resigned Replaced by Sir Arthur Leary Piggott 1806 | Whig Whig |
| Steyning (seat 2/2) | Robert Hurst – sat for Shaftesbury Replaced by Lord Ossulston 1803 | Whig Whig |
| Stirling Burghs (seat 1/1) | Alexander Forrester Inglis Cochrane | |
| Stirlingshire (seat 1/1) | Charles Elphinstone Fleeming | |
| Stockbridge (seat 1/2) | Joseph Foster Barham | Whig |
| Stockbridge (seat 2/2) | George Porter | Whig |
| Sudbury (seat 1/2) | Sir John Coxe Hippisley | |
| Sudbury (seat 2/2) | John Pytches | |
| Suffolk (seat 1/2) | Sir Charles Bunbury, Bt | |
| Suffolk (seat 2/2) | Charles Cornwallis, Viscount Brome – ennobled Replaced by Thomas Gooch 1806 | |
| Surrey (seat 1/2) | Lord William Russell | Whig |
| Surrey (seat 2/2) | Sir John Frederick, Bt | Tory |
| Sussex (seat 1/2) | John Fuller | |
| Sussex (seat 2/2) | Charles Lennox | |
| Sutherland (seat 1/1) | William Dundas | Tory |
|
| Tain Burghs (seat 1/1) | John Villiers – resigned James MacDonald |
|
| Tamworth (seat 1/2) | William Loftus | |
| Tamworth (seat 2/2) | Sir Robert Peel | Tory |
| Taunton (seat 1/2) | William Morland | |
| Taunton (seat 2/2) | John Hammet | |
| Tavistock (seat 1/2) | Lord Robert Spencer | Whig |
| Tavistock (seat 2/2) | Hon. Richard FitzPatrick | Whig |
| Tewkesbury (seat 1/2) | James Martin | Whig |
| Tewkesbury (seat 2/2) | Christopher Bethell Codrington | Tory |
| Thetford (seat 1/2) | John Harrison | |
| Thetford (seat 2/2) | Thomas Creevey | |
| Thirsk (seat 1/2) | William Frankland | |
| Thirsk (seat 2/2) | Sir Gregory Page-Turner, Bt – died Replaced by Hon. Richard Griffin 1805 | |
| County Tipperary (seat 1/2) | Viscount Mathew | |
| County Tipperary (seat 2/2) | John Bagwell (1751-1816) | |
| Tiverton (seat 1/2) | Hon. Dudley Ryder ennobled Replaced by William Fitzhugh1803 | Tory Tory |
| Tiverton (seat 2/2) | Hon. Richard Ryder | Tory |
| Totnes (seat 1/2) | John Berkeley Burland died Vicary Gibbs 1804 | |
| Totnes (seat 2/2) | William Adams | |
| Tralee | Rt Hon. George Canning | Tory |
| Tregony (seat 1/2) | Marquess of Blandford – appointed to office Replaced by George Woodford Thellusson 1804 | Tory Tory |
| Tregony (seat 2/2) | Charles Cockerell | |
| Truro (seat 1/2) | Captain Edward Leveson-Gower | Tory |
| Truro (seat 2/2) | John Lemon | Whig |
| County Tyrone (seat 1/2) | Rt Hon. John Stewart | Tory |
| County Tyrone (seat 2/2) | James Stewart | |
|
| Wallingford (seat 1/2) | William Hughes | Whig |
| Wallingford (seat 2/2) | Sir Francis Sykes, Bt – died Replaced by George Galway Mills 1804 | Tory Tory |
| Wareham (seat 1/2) | John Calcraft | Whig |
| Wareham (seat 2/2) | Andrew Strahan | |
| Warwick (seat 1/2) | Charles Mills | |
| Warwick (seat 2/2) | Lord Brooke | |
| Warwickshire (seat 1/2) | Dugdale Stratford Dugdale | |
| Warwickshire (seat 2/2) | Sir George Augustus William Shuckburgh-Evelyn, Bt died Replaced by Charles Mordaunt 1804 | |
| Waterford | William Congreve Alcock – unseated on petition Replaced by Sir John Newport, Bt. 1803 | Tory Whig |
| County Waterford (seat 1/2) | Rt Hon. John Beresford – died Replaced by John Claudius Beresford 1806 | Tory
|
| County Waterford (seat 2/2) | Edward Lee | Whig |
| Wells (seat 1/2) | Charles William Taylor | Whig |
| Wells (seat 2/2) | Clement Tudway | |
| Wendover (seat 1/2) | Charles Long | Tory |
| Wendover (seat 2/2) | John Smith | Tory |
| Wenlock (seat 1/2) | John Simpson | |
| Wenlock (seat 2/2) | Cecil Forester | |
| Weobley (seat 1/2) | Lord George Thynne | |
| Weobley (seat 2/2) | Robert Steele | |
| Westbury (seat 1/2) | William Baldwin | |
| Westbury (seat 2/2) | Charles Smith | |
| County Westmeath (seat 1/2) | William Smyth | |
| County Westmeath | Gustavus Hume-Rochfort | |
| West Looe (seat 1/2) | James Buller resigned Replaced by Ralph Allen Daniell 1805 | |
| West Looe (seat 2/2) | Thomas Smith – resigned Replaced by Quintin Dick 1803 | |
| Westminster (seat 1/2) | Hon. Charles James Fox – died Replaced by Earl Percy 1806 | Foxite Whig
|
| Westminster (seat 2/2) | Sir Alan Gardner, Bt | Tory |
| Westmorland (seat 1/2) | James Lowther | Tory |
| Westmorland (seat 2/2) | Sir Michael le Fleming, Bt – died Replaced by The Lord Muncaster 1806 | Tory Tory |
| Wexford | Richard Nevill | Tory |
| County Wexford (seat 1/2) | Viscount Loftus ennobled Replaced by Caesar Colclough 1806 | Tory |
| County Wexford (seat 2/2) | Abel Ram | Tory |
| Weymouth and Melcombe Regis (seat 1/4) | Sir James Pulteney, Bt (formerly Murray) | Tory |
| Weymouth and Melcombe Regis (seat 2/4) | William Garthshore – died Replaced by Richard Augustus Tucker Steward 1806 | Tory |
| Weymouth and Melcombe Regis (seat 3/4) | Charles Adams | Tory |
| Weymouth and Melcombe Regis (seat 4/4) | Gabriel Tucker Steward | Tory |
| Whitchurch (seat 1/2) | Hon. William Augustus Townshend | |
| Whitchurch (seat 2/2) | William Brodrick | |
| County Wicklow (seat 1/2) | William Hoare Hume | Whig |
| County Wicklow (seat 2/2) | George Ponsonby – appointed to office Replaced by William Tighe | Whig |
|
| Wigan (seat 1/2) | John Hodson | Tory |
| Wigan (seat 2/2) | Sir Robert Holt Leigh | Tory |
| Wigtown Burghs (seat 1/1) | John Spalding resigned Replaced by William Stewart 1803 – resigned Replaced by James Graham 1805 | |
| Wigtownshire (seat 1/1) | Andrew McDouall – resigned Replaced by William Maxwell 1805 | |
| Wilton (seat 1/2) | John Spencer – appointed to office Replaced by Ralph Sheldon 1804 | |
| Wilton (seat 2/2) | Viscount FitzWilliam – resigned Replaced by Charles Herbert 1806 | |
| Wiltshire (seat 1/2) | Henry Penruddocke Wyndham | Whig |
| Wiltshire (seat 2/2) | Ambrose Goddard | |
| Winchelsea (seat 1/2) | Robert Ladbroke | Whig |
| Winchelsea (seat 2/2) | William Moffat | Whig |
| Winchester (seat 1/2) | Sir Henry St John-Mildmay, Bt | |
| Winchester (seat 2/2) | Richard Grace Gamon | |
| Wootton Bassett (seat 1/2) | General the Hon. Henry St John – resigned Replaced by Peter William Baker 1802 | Tory |
| Wootton Bassett (seat 2/2) | Robert Williams | |
| Worcester (seat 1/2) | Joseph Scott | Whig |
| Worcester (seat 2/2) | Abraham Robarts | Whig |
| Worcestershire (seat 1/2) | Edward Foley – died Replaced by John Ward 1803 | Tory |
| Worcestershire (seat 2/2) | William Lygon – ennobled Replaced by William Lygon 1806 | |
|
| Yarmouth (Isle of Wight) (seat 1/2) | Jervoise Clarke Jervoise | Whig |
| Yarmouth (Isle of Wight) (seat 2/2) | James Patrick Murray – resigned Replaced by Colonel Charles Macdonnell 1803 – died Replaced by Henry Swann 1803 – resigned Replaced by John Delgarno 1804 – resigned Replaced by Captain Sir Home Riggs Popham 1804 – resigned Replaced by David Scott 1806 | |
| York (seat 1/2) | Sir William Mordaunt Milner, Bt. | Whig |
| York (seat 2/2) | Lawrence Dundas | Whig |
| Yorkshire (seat 1/2) | Hon. Henry Lascelles | Tory |
| Yorkshire (seat 2/2) | William Wilberforce | Tory |
| Youghal | Sir John Keane, Bt | Tory |