| Sport: | basketball |
| Year: | 2020–21 |
| Prev Year: | 2019–20 |
| Next Year: | 2021–22 |
| Team: | USC Trojans |
| Conference: | Pac-12 Conference |
| Short Conf: | Pac-12 |
| Record: | 25–8 |
| Conf Record: | 15–5 |
| Coachrank: | 9 |
| Aprank: | 23т |
| Head Coach: | Andy Enfield |
| Hc Year: | 8th |
| Asst Coach1: | Jason Hart |
| Ac1 Year: | 8th |
| Asst Coach2: | Chris Capko |
| Ac2 Year: | 5th |
| Asst Coach3: | Eric Mobley |
| Ac3 Year: | 3rd |
| Arena: | Galen Center |
| Tourney: | NCAA tournament |
| Tourney Result: | Elite Eight |
The 2020–21 USC Trojans men's basketball team represented the University of Southern California during the 2020–21 NCAA Division I men's basketball season. Led by eighth-year head coach Andy Enfield, they played their home games at the Galen Center in Los Angeles, California as members of the Pac-12 Conference. They finished the season 25-8, 15-5 in Pac-12 Play to finish in 2nd place. They defeated Utah in the quarterfinals of the Pac-12 tournament before losing in the semifinals to Colorado. They received an at-large bid to the NCAA tournament where they defeated Drake, Kansas, and Oregon to advance to the Elite Eight where they lost to Gonzaga.
See also: 2019-20 USC Trojans men's basketball team.
The 2019–20 USC Trojans ended the season at 22–9 overall, and a 11-7 Conference record for a tie for 3rd Place with Arizona State. They were set to take on Arizona in the quarterfinals of the Pac-12 tournament. However, the remainder of the Pac-12 Tournament, and all other postseason tournaments, were cancelled amid the COVID-19 pandemic.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Reason for Departure | |
|---|---|---|---|---|---|---|---|---|
| Kyle Sturdivant | 1 | G | 6'3" | 200 | Freshman | Transferred to Georgia Tech | ||
| 2 | G | 6'3" | 205 | Senior | Graduated | |||
| Elijah Weaver | 3 | G | 6'6" | 210 | Sophomore | Transferred to Dayton | ||
| 4 | G | 6'6" | 225 | GS Senior | Graduated/signed to play professional in Finland with Kauhajoki Karhu | |||
| Quinton Adlesh | 10 | G | 6'1" | 200 | GS Senior | Graduated | ||
| 13 | G | 6'6" | 210 | RS Sophomore | Mid-season transferred to TCU | |||
| 21 | F | 6'9" | 245 | Freshman | Declared for the 2020 NBA draft; selected 6th overall by the Atlanta Hawks | |||
| 31 | F | 6'11" | 225 | Senior | Graduated |
| Name | Num | Pos. | Height | Weight | Year | Hometown | Previous School | |
|---|---|---|---|---|---|---|---|---|
| 1 | F | 6'9" | 225 | Redshirt Senior | Transferred from Wofford. Will be eligible to play immediately since Goodwin graduated from Wofford. | |||
| 2 | G | 6'2" | 165 | Redshirt Senior | Transferred from Santa Clara. Will be eligible to play immediately since Eaddy graduated from Santa Clara. | |||
| Isaiah White | 5 | G | 6'7" | 210 | Redshirt Senior | Transferred from Utah Valley. Will be eligible to play immediately since White graduated from Utah Valley. | ||
| 13 | G | 6'8" | 195 | Junior | Transferred from Rice. Peterson was granted a waiver for immediate eligibility. Will have two years of remaining eligibility. | |||
| Joshua Morgan | 24 | F | 6'11" | 210 | Sophomore | Transferred from Long Beach State. Under NCAA transfer rules, Morgan will have to sit out the 2020–21 season. Will have three years of remaining eligibility. | ||
| Reggie Parris | 32 | G | 6'3" | 190 | Junior | Transferred from San Diego. Will join the team as a walk-on. | ||
| Amar Ross | 55 | G | 5'7" | 150 | Junior | Transferred from Bethesda. Will join the team as a walk-on. |
|-!colspan=9 style=| Regular season|-!colspan=9 style=| Pac-12 Tournament|-!colspan=9 style=| NCAA tournament[10]
See also: 2020–21 NCAA Division I men's basketball rankings. Note: AP does not release post-tournament rankings
^ Coaches did not release a Week 1 poll.