| Acronym | Definition |
|---|
| WTT | Want To Trade |
| WTT | Waiting to Try |
| WTT | Watch the Throne |
| WTT | Wild Trout Trust (UK and Ireland) |
| WTT | World Team Tennis |
| WTT | Working Timetable (UK railways) |
| WTT | Well to Tank |
| WTT | Welcome to Tokyo (Tokyo, Japan) |
| WTT | Wheels through Time (museum; North Carolina) |
| WTT | What to Think |
| WTT | Wind Tunnel Test (various companies) |
| WTT | Well-To-Tank |
| WTT | World Turtle Trust (Kailua, HI) |
| WTT | White Trailer Trash (gaming clan) |
| WTT | Windows Test Technology (Microsoft Corp.) |
| WTT | Weapon Tactics Trainer |
| WTT | Warrior Training Task |
| WTT | Web Technology Training (Alcan Aluminum Corporation) |
| WTT | What the Turban |
| WTT | Wyoming Travel & Tourism |