Devin or Devon Williams may refer to:
- Devin Williams (baseball), American professional baseball player
- Devin Williams (basketball), American professional basketball player
- Devon Williams (decathlete), American decathlete
- Devon Williams (footballer), Jamaican footballer
- Devon Williams (rugby union), South African rugby union player
- Devon Williams, a guitarist and vocalist for bands Lavender Diamond, Osker and Fingers Cut Megamachine