Diane Desfor (born June 15, 1955), is an American former tennis player who was active in the late 1970s and early 1980s.

Her best result at a Grand Slam singles event was reaching the third round at the 1981 Wimbledon Championships with she lost in straight sets to seventh-seeded Billie Jean King.

In December 1979, she won the doubles title at the New South Wales Open with Barbara Hallquist.

In June 1981, she reached the semifinals of the singles event at Surbiton, which she lost to Hallquist in three sets.

She attended the University of Southern California and graduated Phi Beta Kappa in 1977 with a degree in psychology.