The Floyd S. Chalmers Canadian Play Award was a Canadian literary award given to Canadian plays produced by any professional Canadian theatre company, and having performances in the Toronto area. The prize had a monetary value of $25,000, and was named for benefactor Floyd Chalmers, an editor and publisher. From the award's inception until 1980, one play was named the winner of the award, except for a tie in 1977. In 1980, the award began honouring multiple plays. That year, five winners were named. Since then, four plays normally won the award each year.