| Year: | 2022–23 |
| Team: | Washington State Cougars |
| Sport: | Basketball |
| Conference: | Pac-12 Conference |
| Conference Link: | Pac-12 Conference men's basketball |
| Short Conf: | Pac-12 |
| Record: | 17–17 |
| Conf Record: | 11–9 |
| Hc Year: | 4th |
| Asst Coach1: | Jim Shaw |
| Asst Coach2: | John Andrejek |
| Asst Coach3: | Wayne Hunter |
| Tourney Result: | First round |
The 2022–23 Washington State Cougars men's basketball team represented Washington State University during the 2022–23 NCAA Division I men's basketball season. The team was led by fourth-year head coach Kyle Smith. The Cougars played their home games at the Beasley Coliseum in Pullman, Washington as members in the Pac-12 Conference. They finished the season 16–15, 11–9 in Pac-12 play, to finish in a tie for fifth place. They defeated California in the first round of the Pac-12 tournament before losing to Oregon in the second round. They received an invitation to participate in the NIT, where they were defeated by Eastern Washington in the first round.
The Cougars finished the 2021–22 season 22–15, 11–9 in Pac-12 play, to finish in a three-way tie for fifth place. They defeated California in the first round of the Pac-12 tournament before losing to UCLA in the quarterfinals. They received an at-large bid to the NIT as a 4th seed in the SMU bracket where they defeated Santa Clara, SMU and BYU to advanced to the semifinals where they lost to Texas A&M.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Reason for departure | |
|---|---|---|---|---|---|---|---|---|
| 0 | C | 6'10" | 225 | Sophomore | Declared for 2022 NBA draft | |||
| Tyrell Roberts | 2 | G | 5'11" | 175 | RS Junior | Transferred to San Francisco | ||
| Jefferson Koulibaly | 3 | G | 6'3" | 185 | RS Freshman | Transferred to SMU | ||
| 12 | G | 6'1" | 190 | GS Senior | Graduated | |||
| Matt DeWolf | 14 | F | 6'9" | 235 | GS Senior | Graduated | ||
| Ryan Rapp | 22 | G | 6'5" | 189 | Junior | Transferred to Hawaii | ||
| 24 | G | 6'5" | 195 | Junior | Transferred to Washington | |||
| Tony Miller | 32 | F | 6'6" | 215 | GS Senior | Graduate transferred | ||
| Will Burghardt | 33 | G | 5'11" | 185 | GS Senior | Walk-on; graduated |
| Name | Num | Pos. | Height | Weight | Year | Hometown | Previous school | |
|---|---|---|---|---|---|---|---|---|
| Jabe Mullins | 3 | G | 6'5" | 190 | Junior | Saint Mary's | ||
| 24 | G | 6'6" | 197 | Junior | Tennessee |
|-!colspan=9 style=| Regular season|-!colspan=9 style=| Pac-12 tournament
|-!colspan=9 style=| NITSource:[1]