| Sport: | Basketball |
| Year: | 1989–90 |
| Prev Year: | 1988–89 |
| Next Year: | 1990–91 |
| Team: | La Salle Explorers |
| Conference: | Metro Atlantic Athletic Conference |
| Division: | South Division |
| Short Conf: | MAAC |
| Coachrank: | 13 |
| Aprank: | 12 |
| Record: | 30–2 |
| Conf Record: | 16–0 |
| Hc Year: | 4th |
| Asst Coach3: | Sam Rines |
| Champion: | MAAC South Division champion MAAC regular season champion MAAC tournament champion |
| Bowl Result: | second round |
The 1989–90 La Salle Explorers men's basketball team represented La Salle University during the 1989–90 NCAA Division I men's basketball season. Led by fourth-year head coach Speedy Morris, the team established the single-season school record for wins with a 30-2 record (16-0 MAAC), including a 22-game win streak. National Player of the Year Lionel "L-Train" Simmons finished his collegiate career third in NCAA scoring with 3,217 points, and also accumulated 1,429 rebounds.[1] He was the first player in NCAA history to score more than 3,000 points and grab more than 1,100 rebounds.[1]
|-!colspan=12 style=| Regular season|-!colspan=12 style=| MAAC Tournament|-!colspan=12 style=| NCAA TournamentSources https://www.sports-reference.com/cbb/schools/la-salle/1990-schedule.html
See also: 1989–90 NCAA Division I men's basketball rankings.
*Final AP and Coaches rankings released prior to NCAA tournament
| Year | Round | Pick | Player | NBA Club |
| 1 | 7 | Sacramento Kings | ||
| 2 | 40 | Detroit Pistons | ||
| 1 | 16 | Los Angeles Clippers | ||