| Mode: | Basketball |
| Year: | 2019–20 |
| Team: | Eastern Washington Eagles |
| Conference: | Big Sky Conference |
| Short Conf: | Big Sky |
| Record: | 23–8 |
| Conf Record: | 16–4 |
| Hc Year: | 3rd |
| Assoc Coach: | Nick Booker |
| Asst Coach2: | David Riley |
| Asst Coach3: | Bobby Suarez |
| Champion: | Big Sky regular season champions |
The 2019–20 Eastern Washington Eagles men's basketball team represented Eastern Washington University during the 2019–20 NCAA Division I men's basketball season. Led by third-year head coach Shantay Legans, the Eagles were members of the Big Sky Conference and played their home games on campus at Reese Court in Cheney, Washington. They finished the regular season at 23–8 (16–4 in Big Sky, first).
As the top seed in the conference tournament, they were slated to play ninth-seeded Sacramento State in the quarterfinals on Thursday, March 12, but the tournament was cancelled due to the COVID-19 pandemic, along with the rest of the NCAA postseason.
The Eagles finished the 2018–19 season at 16–18 (12–8 in Big Sky, third). In the conference tournament, EWU defeated Montana State and Southern Utah to advance to the championship game, where they lost to Montana.
|-!colspan=9 style=|Non-conference regular season|-!colspan=9 style=| Big Sky regular season|-!colspan=9 style=| Big Sky tournament