William Glynne Charles Gladstone

William Glynne Charles Gladstone (14 July 1885 – 15 April 1915) was a Liberal Party politician in the United Kingdom, and the last of four generations of Gladstones to serve in the House of Commons, the first being his great-grandfather Sir John Gladstone(s) (1764–1851).

He was elected as the Member of Parliament (MP) for Kilmarnock Burghs at a by-election in 1911. A whip in Asquith's government, he served only 4 years in Parliament before being killed in action while a Lieutenant in the Royal Welch Fusiliers in World War I.

His father, William Henry Gladstone (1840–1892), was the eldest son of the Liberal Prime Minister William Ewart Gladstone and his wife Catherine. He inherited from his father the 18th-century Hawarden Castle which had been had belonged to the family of his grandmother's brother Sir Stephen Glynne, the 9th and last baronet. After his death, the estate was purchased by his uncle Henry Gladstone, the third son and (seventh child) of William and Catherine. His body was brought home and buried in Hawarden Churchyard.

His uncle Herbert wrote a memoir of him.