Croydon South was a constituency represented in the House of Commons of the Parliament of the United Kingdom. It elected one Member of Parliament (MP) by the first past the post system of election.
Sir Rhys Rhys-Williams, 1st Baronet,, born Rhys Williams, was a British Liberal Party politician from Wales. He later left the Liberal Party for the Conservatives.
The Barnsley by-election, 1938 was a by-election held on 16 June 1938 for the British House of Commons constituency of Barnsley in what was then the West Riding of Yorkshire.
The Louth by-election, 1921 was a by-election held on 22 September 1921 for the British House of Commons constituency of Louth in Lincolnshire.
The Newport by-election, 1945 was a parliamentary by-election held on 17 May 1945 for the British House of Commons constituency of Newport in Monmouthshire. It was the last by-election of the 1935-1945 Parliament.
The Nottingham Central by-election, 1930 was a parliamentary by-election held on 27 May 1930 for the British House of Commons constituency of Nottingham Central.
The Swansea East by-election, 1919 was a parliamentary by-election held for the British House of Commons constituency of Swansea East on 10 July 1919.
The Wolverhampton West by-election, 1922 was a by-election held for the British House of Commons constituency of Wolverhampton West in Wolverhampton on 7 March 1922. It was won by the Coalition Conservative candidate Sir Robert Bird.
The Guildford by-election, 1931 was a parliamentary by-election held for the British House of Commons constituency of Guildford in Surrey on 25 August 1931.
The Berwick-upon-Tweed by-election, 1941 was a parliamentary by-election held on 18 August 1941 for the British House of Commons constituency of Berwick-upon-Tweed.
The University of Wales by-election, 1943 was a parliamentary by-election held in the United Kingdom between 25 and 29 January 1943 for the House of Commons constituency of University of Wales.
The North Cornwall by-election, 1932 was a parliamentary by-election held on 22 July 1932 for the British House of Commons constituency of North Cornwall.
The Oxford by-election, 1924 was a parliamentary by-election held on 5 June 1924 for the British House of Commons constituency of Oxford.
The City of London by-election, 1924 was a parliamentary by-election held on 1 February 1924 for the British House of Commons constituency of City of London, which covered the "Square Mile" which was the United Kingdom's traditional financial district.
The Banbury by-election, 1918 was a parliamentary by-election held for the British House of Commons constituency of Banbury, sometimes also referred to as North Oxfordshire' on 24 September 1918. The seat had become vacant upon the appointment of the sitting Liberal MP, Sir Eustace Fiennes, to become Governor of the Seychelles.
The Cardiganshire by-election, 1932 was a parliamentary by-election held on 22 September 1932 for the British House of Commons constituency of Cardiganshire.
The Portsmouth South by-election, 1923 was a parliamentary by-election held in England on 13 August 1923 to elect a new Member of Parliament (MP) for the House of Commons constituency of Portsmouth South in Hampshire.
The Chertsey by-election, 1922 was a parliamentary by-election for the British House of Commons constituency of Chertsey on 24 March 1922.
The Woodbridge by-election of 1920 was held on 28 July 1920. The by-election was held due to the resignation of the incumbent Coalition Unionist MP, Robert Francis Peel. It was won by the Coalition Unionist candidate Sir Arthur Churchman.
The Buckrose by-election, 1926 was a parliamentary by-election for the British House of Commons constituency of Buckrose, Yorkshire on 5 May 1926. This was the first by-election to take place during the General Strike.
