Dominion of Canada can refer to:
- Canada, historically referred to as "Dominion of Canada" from Confederation until the 1950s
- Dominion of Canada Rifle Association, the national rifleman's association of Canada
- Dominion of Canada General Insurance Company, former life assurance company in Canada
- Dominion of Canada Northern Ontario Men's Curling Championship, former name of the NOCA Men's Provincial Championship
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