Winners (1934 – present)
editList of winners of the J. Ross Robertson Cup from 1934 to present. Teams that went on to win the Memorial Cup listed in bold.
† Note: The Kitchener Greenshirts won the 1935 championship by default, after the Oshawa Generals were disqualified for using an ineligible player. This was a different Kitchener Greenshirts team than the club that later became the Kitchener Canucks, and ultimately the Peterborough Petes.