John MacArthur
John MacArthur or Macarthur may refer to:
- J. Roderick MacArthur, American businessman
- John MacArthur , American evangelical minister, televangelist, and author
- John Macarthur, 20th-century provost of the Cathedral of the Isles in Scotland
- John Macarthur , Australian wool industry pioneer and Rum Rebel
- John D. MacArthur, American philanthropist
- John Gordon MacArthur, fictional murder victim from Agatha Christie's And Then There Were None
- John Knox MacArthur, American World War I flying ace
- John R. MacArthur, American journalist
- John P. Macarthur, Australian academic and architectural historian, Professor of Architecture at University of Queensland
- John Stewart MacArthur, Scottish inventor of the MacArthur-Forrest process for gold cyanidation
- John MacArthur, Scottish international rugby union player