Richard Gary Colbert (February 12, 1915 – December 2, 1973) was a four-star admiral in the United States Navy who served as President of the Naval War College from 1968 to 1971, and as commander in chief of all NATO forces in southern Europe from 1972 to 1973. He was nicknamed "Mr. International Navy" as one of the very few senior admirals in the U.S. Navy identified with international naval cooperation during the Cold War.