1998–99 Oklahoma State Cowboys basketball team

1998–99 Oklahoma State Cowboys basketball
ConferenceBig 12 Conference
Record23–11 (10–6 Big 12)
Head coach
Assistant coaches
Home arenaGallagher-Iba Arena (Capacity: 6,381)
1998–99 Big 12 men's basketball standings
Conf. Overall
Team W   L   PCT W   L   PCT
Texas 13 3   .813 19 13   .594
Missouri 11 5   .688 20 9   .690
No. 22 Kansas 11 5   .688 23 10   .697
Oklahoma 11 5   .688 22 11   .667
Oklahoma State 10 6   .625 23 11   .676
Nebraska 10 6   .625 20 13   .606
Kansas State 7 9   .438 20 13   .606
Colorado 7 9   .438 18 15   .545
Iowa State 6 10   .375 15 15   .500
Texas A&M 5 11   .313 12 15   .444
Texas Tech 5 11   .313 13 17   .433
Baylor 0 16   .000 6 24   .200
1999 Big 12 Tournament winner
Rankings from AP poll

The 1998–99 Oklahoma State Cowboys basketball team represented Oklahoma State University as a member of the Big 12 Conference during the 1998–99 NCAA Division I men's basketball season. They were led by 9th-year head coach Eddie Sutton and played their home games at Gallagher-Iba Arena in Stillwater, Oklahoma. They finished the season 23–11, 10–6 in Big 12 play to finish in a tie for fifth place. The Cowboys lost to Kansas in the championship game of the Big 12 tournament. The team received an at-large bid to the NCAA tournament as the No. 9 seed in the South region. Oklahoma State defeated No. 8 seed Syracuse in the opening round before losing to No. 1 seed Auburn in the second round.