St. Antoine (French: Saint-Antoine) was a federal electoral district in Quebec, Canada, that was represented in the House of Commons of Canada from 1892 to 1935.

It consisted initially of St. Antoine ward in the city of Montreal.

In 1914, it was defined to consist of St. Andrew's and St. Joseph wards in the city of Montreal.

The electoral district was abolished in 1933 when it was redistributed into Saint-Henri, Saint-Antoine—Westmount and St. Lawrence—St.

This riding elected the following members of Parliament: By-election: On Mr. Mitchell's resignation, 14 May 1924