Balfour ministry (1902–1905) Arthur Balfour (1902-1905) Spencer Cavendish, 8th Duke of Devonshire (1902–1903) Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne (1903–1905) The Earl Spencer The Marquess of Ripon This is a list of members of Parliament (MPs) elected at the 1900 general election, held over several days from 25 September to 24 October 1900.

March 1902: Wakefield -- Edward Allen Brotherton replacing William Wentworth-FitzWilliam, 7th Earl FitzWilliam, who inherited his title on the death of his grandfather.

9 October 1903: Meath South - David Sheehy (Irish Parliamentary Party) replacing James Laurence Carew (Independent Nationalist) who died on 31 August.

1903: Dublin University - James Campbell (Unionist) replacing William Lecky (Unionist) who died on 22 October 1903 15 December 1903: Dulwich - Frederick Rutherfoord Harris (Conservative) replacing Sir John Blundell Maple (Conservative) who had died 15 December 1903: Lewisham - Major Edward Coates (Conservative) replacing John Penn (Conservative) who had died 19 August 1904: Cork City -- William O'Brien (Irish Parliamentary Party) replacing William O'Brien (Irish Parliamentary Party) after resigning his seat in January 14 June 1905: Cork City -- Augustine Roche (Irish Parliamentary Party) replacing J. F. X. O'Brien (Irish Parliamentary Party) who died on 23 May.

Sir John Dickson-Poynder, Bt (MP for Chippenham) was elected as a Conservative, but defected to the Liberal Party in 1905.