Bruce Brett Weber (born October 19, 1956) is an American former men's basketball head coach at Kansas State University.

In his five seasons at Southern Illinois, Weber led the Salukis to consecutive Missouri Valley Conference championships and NCAA tournament appearances in 2002 and 2003, including a Sweet Sixteen finish in 2002.

The Illini played a tough early season game against North Carolina on December 2 in Greensboro, and were tied at 69 with just six minutes to go.

Illinois eventually lost the game 88–81, but it proved to be a good test for the young team with no seniors in the starting lineup.

They received a bid as a #5 seed in the 2004 NCAA tournament, defeating Murray State and Cincinnati in the first two rounds to reach the Sweet Sixteen.

A 72–62 loss to top-seeded Duke ended their tournament run, but capped a solid first season for coach Weber.

In the Sweet Sixteen, Weber led the Illini to a victory over his alma-mater, Milwaukee, then defeated Arizona in an amazing comeback to advance to the Final Four.

On March 9, 2012, one day after the Illini lost its Big Ten tournament opening-round game to Iowa, Weber was relieved of his duties.

His first season at KSU ended with an upset loss in the second round of the NCAA tournament to LaSalle, 63–61, in Kansas City's Sprint Center.

Shortly after the end of Weber's first season, starting point guard Ángel Rodríguez and two other players announced their intentions to transfer.

[7][8] Weber started his second season at Kansas State 0–1, but finished the non-conference schedule with an 8-game winning streak and a 10–3 record.

Weber's third season at Kansas State ended with a 15–17 record (8–10 in Big 12 play), and the school did not advance to the NCAA Tournament for the first time since 2009.

The day after a loss to West Virginia in the Big 12 tournament, Weber announced his resignation from Kansas State.

[10] In the summer of 2019, Weber coached the United States national under-19 team at the 2019 FIBA Under-19 World Cup in Heraklion, Greece.

Conference tournament champion Weber joined Big Ten Network as a studio analyst in 2022 and occasionally serves as a color commentator.