| Mode: | Basketball |
| Year: | 2015–16 |
| Team: | Western Illinois Leathernecks |
| Conference: | The Summit League |
| Short Conf: | The Summit |
| Record: | 10–17 |
| Conf Record: | 3–13 |
| Hc Year: | 2nd |
| Asst Coach1: | Josh Wolfe |
| Asst Coach2: | Damon James |
| Asst Coach3: | Mark Vershaw |
The 2015–16 Western Illinois Leathernecks men's basketball team represented Western Illinois University during the 2015–16 NCAA Division I men's basketball season. The Leathernecks, led by second year head coach Billy Wright, played their home games at Western Hall and were members of The Summit League. They finished the season 10–17, 3–13 in Summit League play to finish in last place. They failed to qualify for The Summit League tournament.
| Number | Name | Position | Height | Weight | Year | Hometown | |
|---|---|---|---|---|---|---|---|
| 1 | Jabari Sandifer | Guard | 6–1 | 170 | Junior | Naperville, Illinois | |
| 10 | Jamie Batish | Guard | 6–4 | 190 | Senior | Melbourne, Australia | |
| 11 | De'Andgelo "Delo" Bruster | Guard | 5–11 | 170 | Freshman | Overland Park, Kansas | |
| 12 | DeVante Mayes | Guard | 6–0 | 160 | Sophomore | Peoria, Illinois | |
| 14 | J. C. Fuller | Guard | 6–3 | 180 | Senior | Sioux City, Iowa | |
| 15 | Dalan Ancrum | Guard/Forward | 6–5 | 175 | Sophomore | Round Rock, Texas | |
| 22 | Jalen Morgan | Forward | 6–8 | 202 | RS–Freshman | Indianapolis, Indiana | |
| 24 | James Claar | Forward | 6–8 | 210 | Freshman | Bolingbrook, Illinois | |
| 25 | Noah Wells | Guard | 6–2 | 175 | Freshman | Champaign, Illinois | |
| 30 | Mike Miklusak | Forward | 6–6 | 190 | Junior | Dyer, Indiana | |
| 31 | Garret Covington | Forward | 6–5 | 180 | Junior | Edwardsville, Illinois | |
| 32 | Tate Stensgaard | Forward | 6–8 | 190 | Senior | Rapid City, South Dakota | |
| 33 | Jalen Chapman | Forward | 6–8 | 220 | Senior | The Bronx, New York | |
| 34 | Ryan Maas | Guard | 6–1 | 170 | Freshman | Pekin, Illinois | |
| 44 | Jordan Hughes | Center | 6–10 | 235 | Freshman | Schaumburg, Illinois | |
| 52 | Brandon Gilbeck | Center | 6–11 | 245 | Freshman | Spring Green, Wisconsin |
[1] |-!colspan=9 style="background:#663399; color:#FFD700;"| Exhibition|-!colspan=9 style="background:#663399; color:#FFD700;"| Regular season