Gerhard Mayer (born May 20, 1980 in Vienna) is a male discus thrower from Austria.

He represented his native country at the 2008 Summer Olympics in Beijing, where he ended up in 18th place in the overall-rankings.

He also competed at the 2012 Summer Olympics, finishing in 24th place.

[1] Mayer is best known for winning the gold medal in the men's discus event at the 2007 Summer Universiade in Bangkok, Thailand.

This biographical article relating to Austrian athletics is a stub.