1989–90 BYU Cougars men's basketball team

1989–90 BYU Cougars men's basketball
WAC Regular season co-champions
Cougar Classic champions
ConferenceWestern Athletic Conference
Record21–9 (11–5 WAC)
Head coach
Home arenaMarriott Center
1989–90 WAC men's basketball standings
Conf. Overall
Team W   L   PCT W   L   PCT
Colorado State 11 5   .688 21 9   .700
BYU 11 5   .688 21 9   .700
Hawaii 10 6   .625 25 10   .714
UTEP 10 6   .625 21 11   .656
New Mexico 9 7   .563 20 14   .588
Wyoming 7 9   .438 15 14   .517
Utah 7 9   .438 16 14   .533
San Diego State 4 12   .250 13 18   .419
Air Force 3 13   .188 12 20   .375
1990 WAC tournament winner
Rankings from AP Poll

The 1989–90 BYU Cougars men's basketball team represented Brigham Young University as a member of the Western Athletic Conference during the 1989–90 basketball season. Led by first-year head coach Roger Reid, the Cougars compiled a record of 21–9 (11–5 WAC) to finish second in the WAC regular season standings. The team played their home games at the Marriott Center in Provo, Utah, and finished with an unblemished record at home (16–0). The Cougars received an at-large bid to the NCAA tournament, making their first appearance under Reid. In the NCAA tournament, BYU lost a tough opening round game to Clemson, 49–47.