| Acronym | Definition |
|---|
| BTSS➣Birmingham Trainee Solicitors Society (Birmingham, UK) |
| BTSS➣Big Things Start Small |
| BTSS➣Beyond the Solar System (various organizations) |
| BTSS➣Beyond the Sixth Seal (band) |
| BTSS➣Birth to School Study (Peers Early Education Partnership; UK) |
| BTSS➣Business and Technology Solutions and Services |
| BTSS➣Black Tower Security Services Ltd. |
| BTSS➣Beneath the Scarlet Sand (band) |