BTSS
| 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) |