Samuel Bullitt Churchill (December 6, 1812 – May 14, 1890) was an American attorney and politician who served as Secretary of State of Kentucky for two non-consecutive terms from 1867 to 1871 and 1879 to 1880. He also served as a member of the Missouri Senate in 1858. He was a member of the Democratic Party.
Churchill was one of sixteen children of Samuel Churchill, a Kentucky State Senator, and Abigail Oldham Churchill.