| Acronym | Definition |
|---|
| TRRC➣Texas Railroad Commission |
| TRRC➣Thames Regional Rowing Council (est. 1903) |
| TRRC➣Taconic Road Runners Club (Shrub Oak, NY) |
| TRRC➣Twin Rivers Research Center |
| TRRC➣Turtle Ridge Rock Challenge (Michigan 4WD event) |
| TRRC➣TRADOC Requirements Review Council (US Army) |
| TRRC➣The Refugee Reception Center (displaced persons shelter) |