Clayton Custer
| Oklahoma Sooners | |
|---|---|
| Position | Assistant coach | 
| Conference | Southeastern Conference | 
| Personal information | |
| Born | June 28, 1995 Kansas City, Kansas, U.S.  | 
| Listed height | 6 ft 1 in (1.85 m) | 
| Listed weight | 185 lb (84 kg) | 
| Career information | |
| High school | Blue Valley Northwest (Overland Park, Kansas)  | 
| College | 
  | 
| NBA draft | 2019: undrafted | 
| Position | Point guard | 
| Number | 13 | 
| Coaching career | 2020–present | 
| Career history | |
| As a player: | |
| 2019 | Śląsk Wroclaw | 
| As a coach: | |
| 2020–2021 | Loyola Chicago (Dir. of Player Dev.) | 
| 2021–present | Oklahoma (assistant) | 
| Career highlights | |
  | |
Clayton Custer (born June 28, 1995) is an American former basketball player and current assistant coach for the Oklahoma Sooners. A 6 ft 1 in (1.85 m) point guard, he played college basketball for Loyola University Chicago, and was the 2018 Missouri Valley Conference Player of the Year. Custer briefly played professional basketball for Śląsk Wroclaw of the Polish Basketball League.