The 1981 WCT Tournament of Champions was a men’s tennis tournament played on outdoor clay courts at the West Side Tennis Club in Forest Hills Queens New York City in the United States and part of the 1981 Grand Prix circuit. It was the fifth edition of the tournament and was held from May 4 through May 10 1981. The event was open to players who had won a tournament worth at least $25000 during the previous 12 months.