The Dominion Labour Party (DLP) was a reformist labour party, formed in Canada in 1918. The party enjoyed its greatest success in the province of Manitoba.
In March 1918, Arthur Puttee and members of the Winnipeg Trades and Labour Congress (TLC) created the first branch of the Dominion Labour Party in Canada. The DLP was an ideological successor to various other reformist labour groups in Winnipeg, but was more explicitly socialist and actively cooperated with members of the Social Democratic Party of Canada. The Winnipeg local included such figures as Harry Veitch, Fred Tipping and Member of the Legislative Assembly (MLA) Fred Dixon. In the years after its formation, the DLP would set up other branches in cities throughout the Canadian prairies. It never had a strong central organization, and was more of a network than an organized movement.
The Winnipeg General Strike of 1919 radicalized labour politics in Manitoba, and the DLP soon emerged as a much stronger force than the province's earlier labour parties had been. In the provincial election of 1920, the party formed an electoral alliance with the Socialist Party of Canada, the Social Democrats and a party representing returning ex-soldiers. Dixon easily topped the polled in Winnipeg, and eight other Labour MLAs were elected throughout the province (along with one Socialist and one Social Democrat).
Among the new Labour MLAs were William Ivens, then serving a prison sentence, and Albert E. Smith, who later joined Communist Party of Canada. Strictly speaking, not all of these figures were elected as Dominion Labour Party candidates: Smith, though a member of the DLP, campaigned under the banner of the "Brandon Labour Party". The DLP, however, provided the basic framework around which the provincial campaign was based. Dixon was the unquestioned leader of the labour group in the legislature.