The Ontario Federation of Labour is a federation of labour unions in the Canadian province of Ontario. The original OFL was established by the Canadian Congress of Labour in 1944. It was merged with the rival Ontario Provincial Federation of Labour in 1957 (now considered the modern OFL's founding date), one year after the merger of the CCL and the Trades and Labour Congress (the OPFL's parent federation). It is now the provincial federation of the Canadian Labour Congress. Elroy Robson was the original OFL's first president and William Sefton was its first secretary-treasurer. Policy conventions are held every two years. Today, the federation represents 54 unions and a million workers who belong to its affiliated trade unions.

Officers of the OFL since 1957

Presidents

Secretary-Treasurer

Executive Vice-Presidents

Campaigns

The OFL's primarily helps coordinate and support labour actions, strikes, and bargaining of Ontario's labour unions. Where the law impedes this work the OFL has historically campaigned to have such legislation repealed. Where the law is lacking, the OFL has historically campaigned for new legislation to be introduced. The following are some of the campaigns the OFL has run since establishment: