Ponsonby is a surname, and may refer to:
- Anne Ponsonby (1924–2023), British telegraphist
- Arthur Ponsonby, 1st Baron Ponsonby of Shulbrede (1871–1946), British politician, writer and social activist
- Arthur Ponsonby, 11th Earl of Bessborough (1912–2002), British peer
- Ashley Ponsonby (1831–1898), British politician
- Bernard Ponsonby, Scottish broadcast journalist
- Brabazon Ponsonby, 1st Earl of Bessborough (1679–1758), British politician and peer
- Lady Caroline Ponsonby (1785–1828), married name Lady Caroline Lamb, novelist and lover of Lord Byron
- Cecil Ponsonby (1889–1945), English cricketer
- Chambré Brabazon Ponsonby (c.1720–1762), Irish Member of Parliament
- Chambré Brabazon Ponsonby-Barker (1762–1834), Irish Member of Parliament
- Charles Ponsonby, 2nd Baron de Mauley of Canford (1815–1896), British peer and politician
- Sir Charles Ponsonby, 1st Baronet (1879–1976), British politician
- Dorothea Ponsonby (1876–1963), English writer
- Edward Ponsonby, 2nd Baron Sysonby (1903–1956), British peer and soldier
- Edward Ponsonby, 8th Earl of Bessborough (1851–1920), British peer
- Elizabeth Ponsonby, a Bright Young Thing in the 1920s, daughter of Arthur Ponsonby, 1st Baron Ponsonby of Shulbrede
- Emily Ponsonby (1817–1877), English novelist
- Frederick Ponsonby (British Army officer) (1783–1837), British soldier
- Frederick Ponsonby, 1st Baron Sysonby (1867–1935), British soldier and courtier
- Frederick Ponsonby, 4th Baron Ponsonby of Shulbrede (born 1958), British peer and politician
- Frederick Ponsonby, 3rd Earl of Bessborough (1758–1844), British peer
- Frederick Ponsonby, 6th Earl of Bessborough (1815–1895), British peer, founder of Surrey County Cricket Club and I Zingari
- Frederick Ponsonby, 10th Earl of Bessborough (1913–1993), British peer, diplomat and politician
- George Ponsonby (1755–1817), Lord Chancellor of Ireland
- George Ponsonby (Junior Lord of the Treasury) (1773–1863), Irish politician
- Georgia Ponsonby (born 1999), New Zealand rugby union footballer
- Henrietta Ponsonby, Countess of Bessborough (1761–1821), wife of Frederick Ponsonby, 3rd Earl of Bessborough, mother of Lady Caroline Lamb
- Henry Ponsonby (1825–1895), British soldier and courtier
- Henry Ponsonby (died 1681), English soldier and settler in County Kerry, brother of Colonel John Ponsonby
- Henry Ponsonby (died 1745) (1685–1745), Irish soldier
- Jack Ponsonby (1874–1962), Irish footballer
- Jack Talbot-Ponsonby (1907–1969), British equestrian
- James Carrique Ponsonby (1738–1796), Irish Member of Parliament
- John Ponsonby (British Army officer) (1866–1952), commanded 5th Division during World War I
- John Ponsonby (colonel) (1608–1678), English officer in Oliver Cromwell's army during the Irish Confederate Wars
- John Ponsonby (politician) (1713–1789), Speaker of the Irish House of Commons
- John Ponsonby (RAF officer) (1955–2022), British Air Vice-Marshal
- John Ponsonby, 4th Earl of Bessborough (1781–1847), British politician and Lord Lieutenant of Ireland
- John Ponsonby, 5th Earl of Bessborough (1809–1880), British peer and politician
- John Ponsonby, 1st Viscount Ponsonby, (c.1770–1855), British diplomat, politician and peer
- John Ponsonby-Fane (1848–1916), English malacologist and cricketer
- Loelia Ponsonby, married name Loelia Lindsay (1902–1993), British peeress, needlewoman and magazine editor
- Madeleine Ponsonby, Countess of Bessborough (born 1935), British art dealer
- Maria Ponsonby, Viscountess Duncannon (1787–1834), English noblewoman
- Matthew Ponsonby, 2nd Baron Ponsonby of Shulbrede (1904–1976), British peer
- Maurice Ponsonby (1880–1943), English Anglican cleric, Dean of Johannesburg
- Myles Ponsonby (1924–1999), British soldier, intelligence officer, diplomat and politician
- Richard Ponsonby (bishop) (1722–1815), Church of Ireland bishop
- Richard Ponsonby (politician) (c.1678–1763), Irish Member of Parliament
- Richard Ponsonby-Fane (1878–1937), British Japanologist
- Robert Ponsonby (1926–2019), English arts administrator
- Roberte Ponsonby, Countess of Bessborough (1892–1979), daughter of Baron Jean de Neuflize
- Rupert Ponsonby, 7th Baron de Mauley (born 1957), British peer and politician
- Spencer Ponsonby-Fane (1824–1915), English diplomat, civil servant, courtier and cricketer
- Thomas Ponsonby (captain) (1660–1717), Irish army officer and landowner
- Thomas Ponsonby, 3rd Baron Ponsonby of Shulbrede (1930–1990), British politician
- Vere Ponsonby, 9th Earl of Bessborough (1880–1956), Anglo-Irish politician, Governor General of Canada
- Victoria Ponsonby, Baroness Sysonby (1874–1955), British cookbook author
- Walter Ponsonby, 7th Earl of Bessborough (1821–1906), British peer and Anglican priest
- William Ponsonby (British Army officer) (1772–1815), Irish politician and soldier
- William Ponsonby (publisher) (died 1604), London publisher of the Elizabethan era
- William Ponsonby, 1st Baron Ponsonby (1744–1806), Irish politician
- William Ponsonby, 1st Baron de Mauley (1787–1855), British peer and politician
- William Ponsonby, 2nd Earl of Bessborough (1704–1793), Anglo-Irish politician and public servant
- William Ponsonby, 1st Viscount Duncannon (1659–1724), Anglo-Irish peer
This page lists people with the surname Ponsonby.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.