Siena College competes in NCAA Division I-AAA.
| Name | Participants | |
|---|---|---|
| Men | Women | |
| Baseball | 33 | 0 |
| Basketball | 16 | 13 |
| Field Hockey | 0 | 19 |
| Golf | 7 | 6 |
| Lacrosse | 40 | 30 |
| Soccer | 30 | 27 |
| Softball | 0 | 18 |
| Swimming and Diving | 0 | 21 |
| Tennis | 8 | 10 |
| Track and Field, X-Country | 23 | 19 |
| Volleyball | 0 | 15 |
| Water Polo | 0 | 14 |