TRHA
| 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) |