This is a list of electoral districts or ridings in Canada for the Canadian federal election of 1949. In 1947, ten new districts were created, but Newfoundland became a province in 1949, adding seven new districts. There were no elections held between 1947 and 1949, and there were no by-elections held in Newfoundland after joining confederation.
Electoral districts are constituencies that each elect one member of Parliament in Canada's House of Commons every election.
*returned two members
| Preceded by Electoral districts 1933–1947 | Historical federal electoral districts of Canada | Succeeded by Electoral districts 1952–1966 |