Andrew Stephen "Andy" Roddick (born August 30, 1982) is an American professional tennis player and a former World No. 1. His best surfaces are hard court and grass.

He is the top-ranked American player and the only male American inside the top 10. He became a Grand Slam singles champion when he won the title at the 2003 US Open. Roddick has reached four other Grand Slam finals (Wimbledon three times and the US Open once), losing to Roger Federer each time. He and Federer are the only players to have been ranked in the Association of Tennis Professionals top 10 at year-end from 2002 through 2009. Roddick is known for his powerful serves and holds the fastest serve recorded in professional tennis, measured at 155 mph (249.5 km/h).

Roddick has been on the United States Davis Cup team for several years, helping the US win the 2007 Davis Cup, the first win by the US since 1995.