NTTR
| Acronym | Definition |
|---|---|
| NTTR | North Texas Trail Runners |
| NTTR | New Tools for Teaching and Research (Princeton University; Princeton, NJ) |
| NTTR | Nevada Truck and Trailer Repair Co. (Las Vegas, NV) |
| NTTR | Naval Torpedo Testing Range (US Navy) |
| NTTR | Nevada Test & Training Range (Nellis AFB, NV, USA) |
| NTTR | Nontactical Telecommunications Requirement |