Barbara Hallquist DeGroot (born May 1, 1957)[1] is a retired professional tennis player from the U.S.[2] She was the first female student to receive an athletic scholarship from the University of Southern California (USC) as a result of Title IX legislation.

[6] She earned MVP honors in 1977 as a member of three US Junior Federation Cup teams.

[7] After college, Hallquist turned pro, and she attained a world ranking of 30, completing all four Grand Slam events.

[12] In January 2014 it was announced by head coach Richard Gallien that Barbara Hallquist DeGroot will go back to USC to serve as volunteer assistant coach for the Trojans during its spring season.

[9] Hallquist was inducted into the Intercollegiate Tennis Association Women's Collegiate Hall of Fame on November 13, 2010, on the campus of the College of William and Mary in Williamsburg, Virginia, the location of the Hall of Fame.