Travelers are voting Fort York and Fort Rouillé as the best forts in Toronto. There is 1 fort in St. Catharines a city just 33 km from Toronto. The most popular of these is Fort Mississauga in St. Catharines. You can find 4 forts in Ontario and 18 forts in the country of Canada. Our members favorite in Ontario is Fort Mississauga and Fort York is the top pick in Canada. Want more? Check out our map of forts in Toronto.