| Abbreviation | Definition |
|---|---|
| BTAB | Business Travel Air Brokerage |
| BTAP | Backpacking Tourism Advisory Panel |
| BTCL | Bhutan Tourism Corporation Limited |
| BTCL | Bhutan Tourism Corporation Ltd |
| BTDB | Bamyan Tourism Development Board |
| BTDC | Bali Tourism Development Centre |
| BTDC | Bali Tourism Development Corporation |
| BTDC | Bhaktapur Tourism Development Committee |
| BTED | Business Tourism Education Department |
| BTEG | Business Tourism East Gippsland |
| BTIA | Belize Tourism Industry Association |
| BTMRR | Big Thunder Mountain Railroad |
| BTO | Blanket Travel Order |
| BTO | Busan Tourism Organization |
| BTO | Buy Tourism Online |
| BTP | Baltic Travel Partner |
| BTPA | Barbados Tourism Product Authority |
| BTPS | Bank of Tourism Potentials in Slovenia |
| BTQ | Basic Travel Quota |
| BTR | Bureau of Tourism Research (based in Canberra) |