The 2006–07 OHL season was the 27th season of the Ontario Hockey League. Twenty teams each played 68 games. The season commenced on September 21, 2006. The Plymouth Whalers won the J. Ross Robertson Cup defeating the Sudbury Wolves in the championship series. The Sault Ste. Marie Greyhounds moved from Sault Memorial Gardens (demolished in May 2006) into the new Steelback Centre, which opened October 11, 2006. The Oshawa Generals moved mid-season from the Oshawa Civic Auditorium to the General Motors Centre, on November 3, 2006.