| Acronym | Definition |
|---|
| TTZ➣Technologie Transfer Zentrum (German: Technology Transfer Center; scientific research) |
| TTZ➣The Twilight Zone (TV show) |
| TTZ➣Transformation Toughened Zirconia (ceramics) |
| TTZ➣'T is Te Zeggen (Dutch) |
| TTZ➣Tinnitus Therapie Zentrum (German: Tinnitus Therapy Center; Krefield, Germany) |
| TTZ➣Train to Zone (gaming) |