| Abbreviation | Definition |
|---|---|
| BYLP | Black Youth Leadership Project |
| BYLP | Burma Youth Leadership Program |
| BYLP | Burmese Youth Leadership Program |
| BYM | Bangladesh Youth Movement |
| BYM | Bangladeshi Youth Movement |
| BYM | Baptist Youth Ministries |
| BYM | Baptist Youth Mission |
| BYM | Belize Youth Movement |
| BYND | Broadband and Youth Networking Dialogues |
| BYO | Berkeley Youth Orchestra |
| BYOF | Bonaire Youth Outreach Foundation |
| BYOI | Be Your Own Inspiration |
| BYOV | Bay Youth Orchestras of Virginia |
| BYOW | Bring Your Own Weed |
| BYP | Baltic Youth Philharmonic |
| BYP | Bangla Youth Project |
| BYP | Black Youth Project |
| BYR | Bendigo Youth Racing |
| BYRC | Belmore Youth Resource Centre |
| BYRC | Blazers Youth Running Club |