John Ironmonger (born 16 February 1961) is a former Australian rules footballer who played with the Sydney Swans and Fitzroy in the VFL/AFL.
Ironmonger was a 200 cm ruckman and started his football career at East Perth in the WAFL.
He made his debut in 1980 and won a Sandover Medal for his efforts in the 1983 season.
The following year he was recruited by Sydney with whom he spent three seasons before joining Fitzroy.
While living in California, U.S. he helped found the Santa Cruz Roos in the late 1990s.