McWilliams Arroyo
- Nickname: None
- Date of Birth: 5th December 1985 (38 years old)
- Career duration: 14 years 7 months
-
Nationality:
Puerto Rico -
Birthplace:
Ceiba, Puerto Rico
-
Residence:
Fajardo, Puerto Rico
- Division: Flyweight
- Height: 163cm
- Reach: 163cm
- Stance: Orthodox
- BoxRec: McWilliams Arroyo
- Debut: 27th February 2010