John Arnold
John Arnold is the name of the following people:
- John Arnold (watchmaker) (1736–1799), English watchmaker
- John Arnold (cinematographer) (1889–1964), American cinematographer
- John Arnold (musician) (≈1900 – after 1932), American blues and jazz pianist
- John Arnold (producer) (1921–2003), British film producer, including Last Hour
- John Arnold (Bishop) (born 1953), British auxiliary bishop
- John Arnold (San) (1957 / 1958–2012), leader of the San
- John Douglas Arnold (* 1974), American hedge fund manager
- John H. Arnold (1862–1944), American politician
- John Roger Arnold (1769–1843), English watchmaker
