BYA
| Acronym | Definition |
|---|---|
| BYA | Because You Asked |
| BYA | Billion Years Ago |
| BYA | Berkeley Youth Alternatives |
| BYA | Brigham Young Academy (1892 to 1904; Church of Latter-Day Saints) |
| BYA | Brentwood Youth Activities (Brentwood, NY) |
| BYA | Brownsville Youth Association (Brooklyn, NY) |