| Abbreviation | Definition |
|---|---|
| BTTB | Back To The Bible |
| BTTG | Being Torah Teacher's Guide |
| BTTI | Bible Technology Training Institute |
| BTTI | Bridge To The Islands |
| BTTS | Buddhist Text Translation Society |
| BTU | Baptist Training Union |
| BTW | British Traditional Wicca |
| BTW | Buddhist Translators Workbench |
| BTW | Burn The Witches |
| BUB | Bendict Upward Bound |
| BUCK | Building Up Christ's Kingdom |
| BUGS | Bold Under Gods Shelter |
| BUGS | Bold Under God's Shelter |
| BUI | Baptist Union of Ireland |
| BUILD | Believe, Unlock, Imagine, Love, and Dedicate |
| BUMC | Blacksburg United Methodist Church |
| BUMP | Bridging Urban Ministries Project |
| BUSS | Baptism Until Sunday School |
| BUSY | Be Under Satan's Yoke |
| BUT | Behold the Underlying Truth |