Sam Austin Querrey (born October 7, 1987) is a professional American tennis player from Thousand Oaks, California currently living in Las Vegas, Nevada. As of August 2010, he is the fourth-highest ranked American. His career high rank was #17, achieved on January 31, 2011. His height allows him to play with a strong serve and forehand. Querrey holds the record for most consecutive service aces since the ATP began keeping records of those statistics, with 10 in a 2007 match against James Blake. His regular doubles partner is fellow American John Isner.
Many tennis experts, including Davis Cup Captain Patrick McEnroe, have touted Querrey as America's next great talent.
Querrey turned down a scholarship offer from USC to turn pro. His father Mike Querrey recommended that his son try making it in tennis, as he often regretted his own decision to go to the University of Arizona rather than play baseball for the Detroit Tigers which had drafted him. Sam Querrey said that going pro was "one of the toughest decisions of my life."