Ontario Hockey League Iron Ons

The Ontario Hockey League (OHL) is one of the three major junior ice hockey leagues which constitute the Canadian Hockey League. The league is for players aged 15–20.

The OHL also operates under the Ontario Hockey Federation (OHF) of Hockey Canada.

The league was formed in 1974, out of the Major Junior A Tier I division of the Ontario Hockey Association.

For the first four seasons of the league's existence (as the Ontario Major Junior Hockey League), Clarence "Tubby" Schmalz was the league's commissioner. Then, for one season (1978-79), former IHL commissioner Bill Beagan served as commissioner of the OMJHL. Beginning with the 1979-80 season, David Branch has been the Commissioner of the OHL (which became the league's official name prior to the 1981-82 season). Branch was appointed on August 11, 1979, and assumed the commissioner's role on September 17, 1979. Since 1980 the league has grown rapidly into a high profile marketable product, with many games broadcast on television and radio.

There are currently 20 teams in the OHL; 17 are based in the Canadian province of Ontario, two teams in the American state of Michigan and one team in the American state of Pennsylvania. Out of the 17 teams based in Ontario, 14 teams are in Southern Ontario, and 3 teams are in Northern Ontario.

The three largest arenas in the OHL are Ottawa's TD Place Arena, London's Budweiser Gardens, and the Kitchener Memorial Auditorium Complex in Kitchener.