YBO
| Acronym | Definition |
|---|---|
| YBO | Your Brand Online (Brea, CA) |
| YBO | Young Bucks Outdoors (hunting; Buckmasters) |
| YBO | Youth Builders Organisation (Nigeria) |
| YBO | Your Benefits Online (employee benefits; University of California; Oakland, CA) |
| YBO | Yellow-Brown Opacities (dentistry) |