Keith Gleeson (born 21 June 1976) is a retired Irish Australian rugby union football player.

Gleeson was born in Dublin, Ireland, before moving to Australia with his family as a child.

Perhaps the highlight of his career was representing Ireland in the 2003 Rugby World Cup.

On numerous occasions George Hook has stated that Gleeson should start for Ireland as he feels he is their best openside flanker.

Gleeson retired from professional rugby at the end of the 07/08 season with a Magners League winners medal.