Brigadier General (ret) Gordon O'Connor (born May 18, 1939) is a Canadian Member of Parliament.

Born in Toronto, Ontario, he has a BSc Mathematics and Physics from Concordia University and B.A. in Philosophy from York University.

He served in the Canadian Armed Forces, starting as a Second Lieutenant in the Armour Branch, retiring with the rank of Brigadier General.

He was a Senior Associate with Hill & Knowlton Canada, a world-wide public relations, public affairs and strategic communications company.

He was elected in the 2004 elections as a Conservative candidate in the Ottawa riding of Carleton—Lanark . He is the National Defence critic and is a member of the Standing Committee on National Defence and Veterans Affairs.