William Lofgren (born July 31, 1948) is an American former professional tennis player.

A native of Peoria, Illinois, Lofgren played collegiate tennis for Bradley University was the Missouri Valley Conference singles champion in 1968.

[1] During the 1970s he was active on the professional tennis tour and featured at all four grand slam tournaments.

[2] He has had a long association with tennis in the city of Cincinnati, coaching at the Queen City Racquet Club in Glendale.

In 2004 he was inducted into the Cincinnati Tennis Hall of Fame.