| Mode: | Basketball |
| Year: | 2023–24 |
| Prev Year: | 2022–23 |
| Next Year: | 2024–25 |
| Team: | Saint Mary's Gaels |
| Conference: | West Coast Conference |
| Short Conf: | WCC |
| Record: | 26–8 |
| Conf Record: | 15–1 |
| Coachrank: | 22 |
| Aprank: | 21 |
| Hc Year: | 23rd |
| Asst Coach1: | Joe Rahon |
| Asst Coach2: | Justin Joyner |
| Stadium: | University Credit Union Pavilion (Capacity: 3,500) |
| Champion: | WCC regular season & tournament champions |
| Bowl Result: | First round |
The 2023–24 Saint Mary's Gaels men's basketball team represented Saint Mary's College of California during the 2023–24 NCAA Division I men's basketball season. The team was led by head coach Randy Bennett in his 23rd season at Saint Mary's. The Gaels played their home games at the University Credit Union Pavilion in Moraga, California, as members of the West Coast Conference (WCC). They finished the season 26–8, 15–1 in WCC play to win the regular season championship. As the No. 1 seed in the WCC tournament, they defeated Santa Clara in the semifinals and beat Gonzaga in the championship to win the WCC tournament. Therefore, they received an automatic bid to the NCAA tournament where as the No. 5 seed in the West region, they were upset in the first round by Grand Canyon.
The Gaels finished the 2022–23 season 27–8, 14–2 in WCC play, to win the WCC regular season championship with Gonzaga. In the WCC tournament, they defeated BYU in the semifinals before losing to Gonzaga in the championship. They received an at-large bid to the NCAA tournament as the No. 5 seed in the West region. There they defeated VCU in the first round before losing to national champion UConn in the second round.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Reason for departure | |
|---|---|---|---|---|---|---|---|---|
| 0 | G | 6'2" | 177 | GS Senior | Graduated | |||
| Kyle Bowen | 14 | F | 6'8" | 222 | Senior | Graduated | ||
| Matt Van Komen | 22 | C | 7'4" | 250 | RS Junior | Transferred to Hawaii Pacific | ||
| Leemet Böckler | 23 | G | 6'7" | 215 | Junior | Signed to play professionally |
|-!colspan=12 style=| Exhibition|-!colspan=12 style=| Non-conference regular season|-!colspan=9 style=| WCC regular season|-!colspan=12 style=| WCC tournament|-!colspan=12 style=| NCAA tournamentSource[1]
See also: 2023–24 NCAA Division I men's basketball rankings.