- any of several swallows having a deeply forked tail and long, pointed wings.
- English biochemist: Nobel Prize in chemistry 1952.
- Swiss composer.
- U.S. airplane designer and manufacturer.
- U.S. painter.
- U.S. political leader and publisher: Speaker of the House 1947–49, 1953–55.
- U.S. actress and musical comedy star.
- French prelate: bishop of Tours 370?–397.
- a male given name: from the name of the Roman god Mars.
- any of various swallows of the genera Progne, Delichon, Riparia, etc, having a square or slightly forked tail
- Archer John Porter. 1910–2002, British biochemist; Nobel prize for chemistry 1952 (with Richard Synge; 1914–94) for developing paper chromatography (1944). He subsequently developed gas chromatography (1953)
- Chris(topher Anthony John) . born 1977, British rock musician, lead singer of Coldplay; married to the US actress Gwyneth Paltrow.
- Frank. 1890–1974, Swiss composer. He used a modified form of the twelve-note technique in some of his works, which include Petite Symphonie Concertante (1946) and the oratorio Golgotha (1949)
- Sir George (Henry). born 1926, British record producer and arranger, noted for his work with the Beatles
- John. 1789–1854, British painter, noted for his visionary landscapes and large-scale works with biblical subjects
- Michael (John). Baron. born 1945, Scottish Labour politician; speaker of the House of Commons (2000–09)
- Paul (Edgar Philippe). born 1938, Canadian Liberal politician; prime minister of Canada (2003–06)
- Saint. called Saint Martin of Tours. ?316–?397 ad, bishop of Tours (?371–?397); a patron saint of France. He furthered monasticism in Gaul. Feast day: Nov 11 or 12
- Steve (n). born 1945, US film actor and comedian; his films include The Jerk (1979), Roxanne (1987), and Bowfinger) (1999)
