John Bayard Britton (May 6, 1925 – July 29, 1994) was an American physician. He was murdered in Pensacola, Florida, by anti-abortion extremist Paul Jennings Hill. Britton's death was the second assassination of a Pensacola abortion provider in under a year and a half; he had replaced David Gunn after the latter's 1993 murder by another anti-abortionist.