| Abbreviation | Definition |
|---|---|
| TSZ | Tsetserleg, Mongolia |
| TT02 | Ulithi Island, Micronesia |
| TTA | Tan Tan, Morocco |
| TTB | Tortoli, Italy |
| TTCP | Scarborough (Tobago) Crown Poi, Trinidad & Tobago |
| TTD | Troutdale, Oregon USA |
| TTE | Ternate, Indonesia |
| TTG | Tartagal, SA, Argentina |
| TTH | Thumrait, Oman |
| TTI | Tetiaroa Island, French Polynesia |
| TTJ | Tottori, Japan |
| TTK | Tottenham Hale Station, England, UK |
| TTM | Tablon De Tamara, Colombia |
| TTN | Trenton, New Jersey USA |
| TTO | Britton, South Dakota USA |
| TTPP | Port of Spain Piarco, Trinidad & Tobago |
| TTPS | Port of Spain International, Trinidad & Tobago |
| TTQ | Tortuquero, Costa Rica |
| TTR | Tanatoraja, Indonesia |
| TTS | Tsaratanana, Madagascar |