Travis Lyle Diener (/ˈdiːnər/ DEE-nər;[1] born March 1, 1982) is an American-Italian former professional basketball player who last played for Vanoli Cremona in the Italian Lega Basket Serie A (LBA).

Diener played collegiately at Marquette University, and was a member of the Golden Eagles team that reached the NCAA Tournament Final Four in 2003.

Diener was one of three future NBA players from that Golden Eagles team; the others were Dwyane Wade and Steve Novak.

Diener made his NBA debut on December 2, 2005, playing 12 minutes and scoring three points in a loss against the Memphis Grizzlies.

[2] On June 19, 2007, the Indiana Pacers signed Diener (who was a free agent) to a three-year deal reportedly worth $4.86 million.