| Acronym | Definition |
|---|
| RMHA | Rocky Mountain Horse Association |
| RMHA | Rocky Mountain Hebrew Academy (Denver, CO) |
| RMHA | Riverside Minor Hockey Association (Canada) |
| RMHA | Responsible Mental Health Agency |
| RMHA | Robert M. Haas Associates, Inc. |
| RMHA | Russell Minor Hockey Association (Canada) |
| RMHA | Richmond Minor Hockey Association (BC, Canada) |
| RMHA | Rocky Mountain Haflinger Association |
| RMHA | Runnymede Mental Health Association (Egham, Surrey, UK) |
| RMHA | Rocky Mountain Handcrafted Automobile (club) |
| RMHA | Rochester Mite Hockey Association (Minnesota) |
| RMHA | Regional Meat Hygiene Adviser (UK) |
| RMHA | Relief Mental Health Associate |
| RMHA | Racine Mutual Housing Association (Racine, WI) |