Thomas William Coke, 3rd Earl of Leicester, GCVO, CMG, TD (20 July 1848 – 19 November 1941), known as Viscount Coke until 1909, was a British peer and soldier.
Leicester was the eldest son of Thomas Coke, 2nd Earl of Leicester, by his first wife Juliana (née Whitbread). He was a Colonel in the 2nd Battalion of the Scots Guards and served in Egypt in 1882, and at Suakin in 1885. Having retired from the regular army, he was appointed lieutenant-colonel in command of the Norfolk Artillery Militia on 21 February 1894. Following the outbreak of the Second Boer War in late 1899, the militia regiment was embodied in May 1900, and around 100 men was sent to South Africa under the command of Lord Coke. After peace was declared in May 1902, they left Cape Town on board the SS Walmer Castle in late June, and arrived at Southampton the following month. He was mentioned in despatches (including the final despatch by Lord Kitchener dated 23 June 1902).
Lord Leicester held the position of Lord-Lieutenant of Norfolk from 1906 to 1929.
Lord Leicester married the Hon. Alice Emily White, daughter of Luke White, 2nd Baron Annaly, on 26 August 1879. They had five children: