| Mode: | Basketball |
| Year: | 2012–13 |
| Team: | USC Trojans |
| Conference: | Pac-12 Conference |
| Short Conf: | Pac-12 |
| Record: | 14–18 |
| Conf Record: | 9–9 |
| Head Coach: | Kevin O'Neill (4th year, Fired on Jan. 19) |
| Head Coach2: | Bob Cantu (Interim Coach) |
| Asst Coach1: | Dieter Horton |
| Asst Coach2: | Tony Miller |
The 2012–13 USC Trojans men's basketball team represented the University of Southern California during the 2012–13 NCAA Division I men's basketball season. They were led by fourth year head coach Kevin O'Neill until January 14 when O'Neill was fired. Bob Cantu was named as an interim head coach for the remainder. They played their home games at the Galen Center and were members of the Pac-12 Conference. They finished the season 14–18, 9–9 in Pac-12 play to finish in a four-way tie for sixth place. They lost in the first round of the Pac-12 tournament to Utah.
| Number | Name | Position | Height | Weight | Year | Hometown | |
|---|---|---|---|---|---|---|---|
| 0 | Renaldo Woolridge | Forward | 6–9 | 220 | Senior | Sherman Oaks, California | |
| 1 | Jio Fontan | Guard | 6–0 | 175 | RS Senior | Paterson, New Jersey | |
| 2 | Greg Allen | Guard | 6–3 | 180 | Senior | Eureka, California | |
| 4 | Tyler Sugiyama | Guard | 5–10 | 150 | RS Junior | Winnetka, Illinois | |
| 5 | Ari Stewart | Forward | 6–7 | 205 | RS Junior | Marietta, Georgia | |
| 13 | Chass Bryan | Guard | 5–9 | 165 | Freshman | Oak Park, California | |
| 14 | Dewayne Dedmon | Forward | 7–0 | 255 | RS Junior | Lancaster, California | |
| 15 | Brendyn Taylor | Guard | 6–2 | 185 | Freshman | Los Angeles, California | |
| 20 | J.T. Terrell | Guard | 6–3 | 185 | Junior | Burlington, North Carolina | |
| 21 | Aaron Fuller | Forward | 6–6 | 235 | RS Senior | Mesa, Arizona | |
| 22 | Byron Wesley | Guard | 6–5 | 210 | Sophomore | Etiwanda, California | |
| 24 | Daniel Munoz | Guard | 5–10 | 175 | Senior | Coto de Caza, California | |
| 31 | James Blasczyk | Center | 7–1 | 260 | Senior | Friendswood, Texas | |
| 34 | Eric Wise | Forward | 6–6 | 240 | RS Senior | Riverside, California | |
| 42 | Strahinja Gavrilović | Forward | 6–9 | 225 | Freshman | Kragujevac, Serbia | |
| 55 | Omar Oraby | Center | 7–2 | 270 | Junior | Cairo, Egypt |
|-!colspan=9| Regular season|-!colspan=9| Pac-12 tournament