| Acronym | Definition |
|---|
| TRHA➣Texas Rural Health Association (est. 1984) |
| TRHA➣Texas Residence Hall Association |
| TRHA➣Twin Rivers Homeowners' Association |
| TRHA➣Texas Robin Hunting Association |
| TRHA➣Ted Reeve Hockey Association (est. 1954; Toronto, Ontario, Canada) |
| TRHA➣Twyford & Ruscombe Horticultural Association (Berkshire, England) |