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- Kehilat Or Hadash - Toronto, Ontario
- Kehillat Shaarei Torah - North York
- Kiever Synagogue - Toronto (Kensington Market) - also known as the First Russian Congregation, pre-1940 synagogue
- Knesseth Israel - Toronto - pre-1940 synagogue, the city's oldest functioning synagogue
- Kol Torah - Thornhill, Ontario
- Kollel Ravid - North York
- Kollel Yismach Moshe - North York
Read more about this topic: List Of Synagogues In The Greater Toronto Area