Bill Behrens (born June 26, 1970) is a former professional tennis player from the United States.

Behrens, who was born in Pasadena, played for four years at the University of California, Los Angeles before turning professional.

[1] His only title on the ATP World Tour came in the doubles event at St. Pölten in 1992, as an unseeded pairing with Matt Lucena.

[2] In singles he made it to 226 in the world and was a finalist in a Challenger tournament in Birmingham, Alabama in 1996, with wins over top 100 players Michael Joyce and Nicolás Lapentti.

Behrens competed in the main draw of the men's doubles events at six Grand Slam tournaments across 1996 and 1997.