Port Dalhousie is a community in St. Catharines, Ontario, Canada. It is known for its waterfront appeal. It is also home to the Royal Canadian Henley Regatta and is historically significant as the terminus for the first three (19th century) routes of the Welland Canal.
The city's most popular beach, on the shore of Lake Ontario, is located in Port Dalhousie at historic Lakeside Park. The park is home to an antique carousel which was carved by Charles I. D. Looff in 1905 and brought to St. Catharines in 1921. It continues to provide amusement for young and old alike, at just 5 cents a ride.