Thomas McKee Bayne (June 14, 1836 – June 16, 1894) was a Republican member of the U.S. House of Representatives from Pennsylvania. Bayne was born in Bellevue, Allegheny County, Pennsylvania. He attended the public schools and Westminster College in New Wilmington, Pennsylvania. He studied law. During the American Civil War, he entered the Union Army in July 1862 as colonel of the One Hundred and Thirty-sixth Regiment, Pennsylvania Volunteer Infantry.