Laura Diaz (born April 27, 1975) is an American professional golfer.

Diaz was born Laura Philo in Scotia, New York. She won the 1995 North and South Women's Amateur at Pinehurst. In 1996 she won the Eastern Women's Amateur Championship and made it to the quarterfinals of the 1996 U.S. Women's Amateur. A business student at Wake Forest University, Diaz was named the university's 1997 Female Athlete of the Year.

Diaz turned professional in 1997 and spent three years playing on the Futures Tour where she scored three tournament wins. She also played on the Ladies European Tour, where she was rookie of the year in 1998. She joined the LPGA Tour in 1999 and has earned two victories, both coming in the 2002 season when she had ten top-10 finishes. She has played on four Solheim Cup teams (2002, 2003, 2005, 2007).

Prior to 2000, she competed as Laura Philo before marrying her husband, Kevin Diaz, and taking his last name. Laura's brother, Ron Philo Jr., is a PGA Professional.