Adelphi University competes in NCAA Division II (without football).
| Name | Participants | |
|---|---|---|
| Men | Women | |
| Baseball | 37 | 0 |
| Basketball | 14 | 15 |
| Field Hockey | 0 | 22 |
| Golf | 6 | 3 |
| Lacrosse | 41 | 24 |
| Soccer | 27 | 28 |
| Softball | 0 | 16 |
| Swimming | 14 | 17 |
| Tennis | 7 | 8 |
| Track and Field, Indoor | 25 | 21 |
| Track and Field, Outdoor | 26 | 21 |
| Track and Field, X-Country | 18 | 10 |
| Volleyball | 0 | 16 |
| Bowling | 0 | 8 |