William Waldegrave, 9th Earl Waldegrave

The Right Honourable The Earl Waldegrave PC VD
The Earl Waldegrave, from Vanity Fair, 1912.
Captain of the Yeomen of the Guard
In office 26 August 1896 – 4 December 1905
Monarch	Victoria Edward VII
Prime Minister	The Marquess of Salisbury Arthur Balfour
Preceded by	The Earl of Limerick
Succeeded by	The Duke of Manchester
Personal details
Born	2 March 1851
Died	12 August 1930 (aged 79)
Nationality	British
Political party	Conservative
Spouse(s)	Lady Mary Palmer (1850-1933)
Alma mater	Trinity College, Cambridge

William Frederick Waldegrave, 9th Earl Waldegrave, VD, PC (2 March 1851 – 12 August 1930), styled Viscount Chewton between 1854 and 1859, was a British Conservative politician. He served as Captain of the Yeomen of the Guard, government chief whip in the House of Lords, between 1896 and 1905.

Waldegrave was the eldest son of William Waldegrave, Viscount Chewton, eldest son of Vice-Admiral William Waldegrave, 8th Earl Waldegrave. His mother was Frances, daughter of Captain John Bastard. He gained the courtesy title Viscount Chewton in 1854 on the early death of his father. In 1859, aged eight, he succeeded his grandfather in the earldom. He was educated at Eton and Trinity College, Cambridge.

Waldegrave was commissioned into the 3rd Cambridgeshire Rifle Volunteer Corps in 1869. He was promoted Lieutenant in 1870 and resigned his commission as a Captain in 1872. He was commissioned an Ensign in the 1st London Rifle Volunteer Corps in 1873 and was promoted Lieutenant and Captain in 1874 and Major in 1886. He retired as a Lieutenant-Colonel.

Lord Waldegrave sat on the Conservative in the House of Lords. He was a Lord-in-Waiting under Lord Salisbury from 1886 to 1892 and again from 1895 to 1896.