John MacArthur
John MacArthur or John Macarthur is the name of the following people:
- John Macarthur (politician) (1767–1834), Australian politician and businessman
- John D. MacArthur (1897–1978), American banker and patron, founder of the MacArthur Fellowship
- John F. MacArthur (* 1939), American pastor, theologian and author
- John R. MacArthur (* 1956), American journalist
- John Stewart MacArthur (1856-1920) Scottish chemist