Thomas Kennedy PC (25 December 1874 – 3 March 1954) was a British Labour politician.
Kennedy was born in Kennethmont, Aberdeenshire, and became a railway clerk.
He supported the SDF's formation of the British Socialist Party (BSP) and became its National Organiser in 1913, but in 1914 left to fight in World War I.
As a supporter of the War, he left the BSP in 1916 to join the new National Socialist Party.
He served in Government as a Lord Commissioner of the Treasury in 1924, in opposition as Deputy Chief Whip (1925–1927) and Chief Whip of the Labour Party (1927–1931) and again in Government as Parliamentary Secretary to the Treasury from 1929 to 1931.