John Denny (disambiguation)

John Denny (born 1952) is an American former baseball player.

John Denny may also refer to:

• John Denny (Medal of Honor) (c. 1846 – 1901), U.S. Army soldier
• John Denny (politician) (1793–1875), American politician
• John McAusland Denny (1858–1922), Scottish politician