| Rank | Abbreviation | Meaning |
|---|
| ***** | BTLA | Basal Temporal Language Area
| |
| **** | BTLA | Board of Tax and Land Appeals
| |
| **** | BTLA | Bluetooth Trademark Licensing Agreement
| |
| **** | BTLA | B and T Lymphocyte Attenuator
| |
| *** | BTLA | Birds of Torrens Lake Adelaide
| |
| *** | BTLA | Bangladesh Tax Lawyers Association
| |
| *** | BTLA | Brooklyn Town Library Association
| |
| *** | BTLA | Bacon Tomato Lettuce and Avocado
| |
| *** | BTLA | Boone Tree Library Association
| |
| ** | BTLA | Bluebonnet Texas Longhorn Association
| |
| ** | BTLA | Belvedere-Tiburon Library Agency
| |
| ** | BTLA | Bureau of Tax and Land Appeals
| |
| ** | BTLA | Broadstairs Tourism Leisure Association
| |
| * | BTLA | British Turkish Lawyers Association
| |