The 2002–03 Arizona Wildcats men's basketball team represented the University of Arizona during the 2002–03 NCAA Division I men's basketball season.

Head coach Lute Olson led the team in his 20th season at Arizona.

The team played their home games at McKale Center in Tucson, Arizona as members of the Pacific-10 Conference.

[3] Roster [5][6] [6] Arizona was invited to the NCAA tournament for the 19th-straight season,[3] receiving the top seed in the West Region.

The team advanced to the Elite Eight by defeating (16-seed) Vermont, (9) Gonzaga, and (5) Notre Dame before falling 78-75 to (2) Kansas.