Brigadier General William Kaye Legge CMG DSO (13 June 1869 – 29 March 1946) was a senior British Army officer during the First World War.

A grandson of William Legge, 4th Earl of Dartmouth, William Kaye Legge was son of Charles Gounter Legge and Mary Garnier, daughter of Thomas Garnier.^[1] He was born on 13 June 1869, and educated at Bedford School between 1881 and 1887. He received his first commission as a second lieutenant in the Essex Regiment on 30 January 1889, and was promoted to lieutenant on 6 July 1891. He served during the Second Boer War, between 1899 and 1902, and was promoted to captain on 29 January 1900.^[2]

Legge served during the First World War, between 1914 and 1918, and was Commander of the 163rd Infantry Brigade, between 1924 and 1926.^[3]

Brigadier General William Kaye Legge was invested as a Companion of the Distinguished Service Order in 1917, and as a Commander of the Order of St Michael and St George in 1918.^[4][5] He retired from the British Army in 1926, and died in Hastings on 29 March 1946.^[6]