Lieutenant-General Sir Thomas D’Oyly Snow, KCB, KCMG (5 May 1858 – 30 August 1940) was a British Army officer who fought on the Western Front during the First World War. He played an important role in the war, leading the 4th Division in the retreat of August 1914, and commanding VII Corps at the unsuccessful diversion of the Attack on the Gommecourt Salient on the first day on the Somme (1 July 1916) and at the Battle of Cambrai in November 1917.