The Communist Party of Canada (Ontario) (French: Parti communiste du Canada (Ontario)) is the Ontario provincial wing of the Communist Party of Canada. Using the name Labor-Progressive Party from 1943 until 1959, the group won two seats in the Legislative Assembly of Ontario: A.A. MacLeod and J.B. Salsberg were elected in the 1943 provincial election as "Labour" candidates but took their seats as members of the Labor-Progressive Party, which the banned Communist Party launched as its public face in a convention held on August 21 and 22, 1943, shortly after both the August 4 provincial election and the August 7 election of Communist Fred Rose to the House of Commons in a Montreal by-election.