Arroyo often refers to:
- Arroyo (watercourse), an intermittently dry creek
Arroyo may also refer to:
Places
United States
- Arroyo, Pennsylvania
- Arroyo, Puerto Rico, a municipality
- Arroyo, West Virginia
Spain
- Arroyo (Santillana del Mar), a town in Santillana del Mar, Spain
Fictional places
- Arroyo, a settlement in Fallout 2
Other
- Arroyo (surname)
- Restaurante Arroyo in Mexico City, the world's largest Mexican restaurant
- Arroyo, a fictional village in the computer game Fallout 2
- USS Arroyo (SP-197), a United States Navy patrol boat in commission from 1917 to 1918
- "Arroyo", a song by band SWA