John Adam
John Adam may refer to:
- John Adam (architect), Scottish architect
- John Adam (silversmith), silversmith and painter in Virginia
- John Adam (administrator), British administrator in India
- John Adam (legislator), Wisconsin populist legislator from Milwaukee
- John Adam (sailor), British sailor, won silver medal at 1908 Summer Olympics
- John A. Adam (journalist), American reporter
- John A. Adam (mathematician), British-American applied mathematician
- John Adam (rugby league), Australian rugby league player
- John Adam (actor), Australian television and theatre actor
- John Adam (MP), for New Romney
- John Adam (hoax), the name given by Islamic militants to a U.S. soldier they claimed to have captured
- John J. Adam, Scottish-American teacher, businessman, and politician