| Mode: | Basketball |
| Year: | 1979–80 |
| Prev Year: | 1978–79 |
| Next Year: | 1980–81 |
| Team: | Holy Cross Crusaders |
| Conference: | East Coast Athletic Conference |
| Short Conf: | ECAC-N |
| Record: | 19–11 |
| Conf Record: | 4–0 |
| Head Coach: | George Blaney |
| Hc Year: | 8th |
| Arena: | Hart Center |
| Champion: | ECAC North tournament champions |
| Tourney: | NCAA tournament |
| Tourney Result: | first round |
The 1979–80 Holy Cross Crusaders men's basketball team represented the College of the Holy Cross during the 1979–80 NCAA Division I men's basketball season. The Crusaders, led by head coach George Blaney, played their home games at the Hart Center and were members of the East Coast Athletic Conference North. They finished the season 19–11, 4–0 in ECAC-South play to finish in third place. They defeated Vermont, Maine, and Boston University to win the ECAC North tournament and earn the conference's automatic bid to the NCAA tournament. As No. 11 seed in the East region, they lost to Iona in the opening round, 84–78.[1]
|-!colspan=9 style=|Regular season|-!colspan=9 style=| ECAC North tournament|-!colspan=9 style=|NCAA tournament[2] [3]