Gary James Oakes (born 21 September 1958 in Kentish Town, Camden, London) is a male British retired athlete who mainly competed in the men's 400 metre hurdles.

Oakes competed for Great Britain at the 1980 Summer Olympics held in Moscow, Soviet Union, where he won the bronze medal in the 400 metre hurdles.

He represented England in the 400 metres hurdles event, at the 1978 Commonwealth Games in Edmonton, Alberta, Canada.

He is married to fellow two-time Olympic bronze medallist Heather Hunte.

This biographical article relating to English athletics is a stub.