John Dixwell (1607 – 18 March 1689) was an English man who sat in Parliament, fought for the Parliamentary cause in the English Civil War, and was one of the Commissioners who sat in judgement on King Charles I and condemned him to death. At the Restoration he fled to Connecticut where he lived out the rest of his life as John Davids untroubled by the authorities who thought him dead.

John W. Tidwell is a retired American basketball player and medical doctor. He played for the University of Michigan from 1958 to 1961 and broke the school's records for points scored in a single game and single season. He later became an obstetrician-gynecologist in Charlotte, North Carolina.

John C. Tidwell (born August 15, 1941) is an American politician and a Democratic member of the Tennessee House of Representatives representing District 74 since January 1997.