| Acronym | Definition |
|---|
| TRO | Temporary Restraining Order |
| TRO | Trusted Root Object |
| TRO | Triple Rule Out (cardiology) |
| TRO | Traffic Regulation Order (UK) |
| TRO | Tamil Rehabilitation Organization |
| TRO | Transtrochanteric Rotational Osteotomy (surgery) |
| TRO | Technical ReadOut (gaming) |
| TRO | Trouts (FAO fish species code) |
| TRO | Triennial Review Order (FCC) |
| TRO | Tricare Regional Office (Military Health System) |
| TRO | Tempel Riddare Orden (Swedish: Order of the Knights Templar) |
| TRO | Training and Readiness Oversight (US DoD) |
| TRO | Transitional Recovery Office (FEMA) |
| TRO | Therapeutic Recreation Ontario |
| TRO | Tax Refund Offset |
| TRO | Trip Reduction Ordinance |
| TRO | Total Retirement Outsourcing |
| TRO | Total, Relaxed Organization |
| TRO | Transportation Officer |
| TRO | Tax Recovery Officer (India) |
| TRO | Thyroid-Related Orbitopathy (ophthalmology) |
| TRO | Truck Route Order |
| TRO | Test Requirement Outline |
| TRO | Thomas Register Online |
| TRO | Technical Reviewing Office |
| TRO | Tailored Readiness Options |
| TRO | Target Response Objective |
| TRO | Threat Reduction Operations |
| TRO | Toro Peak, California (earthquake reporting station) |
| TRO | The Refined Obligation (band) |
| TRO | Team Rallye Ouest (French automobile racing association) |