| Acronym | Definition |
|---|
| BRTA | Bilateral and Regional Trade Agreements |
| BRTA | Berkshire Regional Transit Authority |
| BRTA | Baghdad Rapid Transit Authority (Baghdad, Iraq) |
| BRTA | Bedfordshire Railway & Transport Association |
| BRTA | Bangladesh Rural Telecom Authority |
| BRTA | Business Response to AIDS |
| BRTA | Blue Ridge Technical Academy |
| BRTA | Bushmans River Tourism Association (Zambia) |
| BRTA | Black Rock Travel Agency (Black Rock City, NV) |
| BRTA | Bradford Retired Teachers' Association |
| BRTA | Babbage Rail Transit Authority |
| BRTA | Blackpool Radio Taxi Association |