The St Catharines Lawn Tennis Club was one of nine clubs which participated in the founding of the Canadian Lawn Tennis Association (Tennis Canada) in 1890.
The St Catharines Tennis Club was re-founded in 1922 and was a powerhouse on the Ontario scene at its 50th anniversary in 1972. It was an independent member-owned enterprise and experienced complications leading to its gradual demise through to 2021.
A St Catharines Tennis Alliance was founded in 2021 to lobby for public facilities which could be activated by a community club. Four new courts have been constructed at Merritton Park (7 Park Avenue) and will be surfaced in the spring of 2025. This is the home base for a new St Catharines Tennis Club.