John McEwen (disambiguation)
John McEwen was the 18th Prime Minister of Australia.
John McEwen may also refer to:
- John McEwen (American politician) (born 1928), American politician
- John McEwen (athlete) (born 1974), American hammer thrower
- John Blackwood McEwen (1868–1948), Scottish classical composer
- Sir John McEwen, 1st Baronet (1894–1962), Scottish politician
- John McEwen (art critic)