| Sport: | basketball |
| Year: | 1999–2000 |
| Team: | Gonzaga Bulldogs |
| Conference: | West Coast Conference |
| Short Conf: | WCC |
| Coachrank: | 24 |
| Record: | 26–9 |
| Conf Record: | 11–3 |
| Head Coach: | Mark Few |
| Hc Year: | 1st |
| Asst Coach1: | Bill Grier |
| Ac1 Year: | 9th |
| Asst Coach2: | Leon Rice |
| Ac2 Year: | 1st |
| Arena: | Charlotte Y. Martin Centre |
| Champion: | WCC Tournament champions |
| Tourney: | NCAA tournament |
| Tourney Result: | Sweet Sixteen |
The 1999-2000 Gonzaga men's basketball team represented Gonzaga University as a member of the West Coast Conference during the 1999-2000 NCAA Division I men's basketball season. They were led by first-year coach Mark Few and reached the Sweet Sixteen of the NCAA tournament.
|-!colspan=9 style="background:#002967; color:white;"| Regular season
|-!colspan=9 style="background:#002967; color:white;"| WCC Tournament|-!colspan=9 style="background:#002967; color:white;"| NCAA tournament
See main article: 1999–2000 NCAA Division I men's basketball rankings.