| Abbreviation | Definition |
|---|---|
| BYRC | Bonthe Youth Resource Center |
| BYRC | Broadway Youth Resource Centre |
| BYRL | Bunn Youth Recreational League |
| BYRS | Belizean Youth for Road Safety |
| BYS | Bainbridge Youth Services |
| BYS | Blazer Youth Sports |
| BYS | Boise Youth Spectacular |
| BYS | Boricua Youth Study |
| BYS | Boston Youth Sanctuary |
| BYS | Boston Youth Symphony |
| BYS | Bridging Youth Soccer |
| BYS | Brisbane Youth Service |
| BYS | Butterfield Youth Services |
| BYS | Byron Youth Service |
| BYSSI | Black Youth School Success Initiative |
| BYST | Belleville Youth Swim Team |
| BYST | Business and Youth Starting Together |
| BYT | Bellevue Youth Theatre |
| BYTE | Border Youth Tennis Exchange |
| BYTE | Bringing Youth Technology Everywhere |