| tt | |
| —the internet domain name for | |
| Trinidad and Tobago | |
| TT | |
| —abbreviation for | |
| 1. | teetotal |
| 2. | teetotaller |
| 3. | telegraphic transfer: a method of sending money abroad by cabled transfer between banks |
| 4. | Tourist Trophy (annual motorcycle races held in the Isle of Man) |
| 5. | tuberculin-tested |
| —abbreviation for | |
| 6. | Trinidad and Tobago (international car registration) |
| tt Tatar |
| Tt Titus |
TT
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