| Acronym | Definition |
|---|
| BSTA➣Banco de Sangre y Tejidos de Aragón (Spanish: Blood and Tissue Bank of Aragon) |
| BSTA➣Body for Scientific and Technological Advice (UN Framework Convention on Climate Change) |
| BSTA➣British Schools Tennis Association (UK) |
| BSTA➣Board of Storage Tank Assistance (Arkansas) |
| BSTA➣Business Services Training Australia |
| BSTA➣Barbados Society of Technologists in Agriculture (est. 1939) |
| BSTA➣British Surgical Trades Association (UK) |