| Mode: | Basketball |
| Year: | 1999–2000 |
| Prev Year: | 1998–99 |
| Next Year: | 2001–01 |
| Team: | St. Bonaventure Bonnies |
| Conference: | Atlantic 10 Conference |
| Short Conf: | A-10 |
| Record: | 21–10 |
| Conf Record: | 11–5 |
| Hc Year: | 8th |
| Tourney Result: | first round |
The 1999–2000 St. Bonaventure Bonnies men's basketball team represented St. Bonaventure University during the 1999–2000 NCAA Division I men's basketball season. The Bonnies, led by 8th-year head coach Jim Baron, played their home games at the Reilly Center and were members of the Atlantic 10 Conference. They finished the season 21–10, 11–5 in A-10 to finish in second place. They lost to Temple in the championship game of the A-10 Basketball tournament, but did earn an at-large bid to the 2000 NCAA tournament where they lost in the opening round to Kentucky, 85–80 in 2OT.[1]
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