| Mode: | Basketball |
| Year: | 2019–20 |
| Team: | Lehigh Mountain Hawks |
| Conference: | Patriot League |
| Short Conf: | Patriot |
| Record: | 11–21 |
| Conf Record: | 7–11 |
| Head Coach: | Brett Reed |
| Hc Year: | 13th |
| Asst Coach1: | Quinn McDowell |
| Asst Coach2: | Harry Morra |
| Asst Coach3: | Noel Hightower |
| Stadium: | Stabler Arena |
The 2019–20 Lehigh Mountain Hawks men's basketball team represented Lehigh University during the 2019–20 NCAA Division I men's basketball season. The Mountain Hawks, led by 13th-year head coach Brett Reed, played their home games at Stabler Arena in Bethlehem, Pennsylvania as members of the Patriot League. They finished the season 11–21, 7–11 in Patriot League play to finish in a tie for eighth place. They defeated Loyola (MD) in the first round of the Patriot League tournament before losing in the quarterfinals to Colgate.
|-!colspan=9 style=| Non-conference regular season|-!colspan=9 style=| Patriot League regular season|-!colspan=9 style=| Patriot League tournamentSource[1]