| Acronym | Definition |
|---|
| MHTA | Minnesota High Technology Association (Minneapolis, MN) |
| MHTA | Michigan Horticultural Therapy Association |
| MHTA | Montana Healthcare Telecommunications Alliance |
| MHTA | Multistate Highway Transportation Agreement |
| MHTA | Mental Health Trust Authority (Alaska) |
| MHTA | Mental Health Therapy Aide |
| MHTA | Manual Highway Tape Applicator |
| MHTA | Mauritius Head Teachers Association |
| MHTA | Michigan Horticulture Teachers Association |
| MHTA | Metal Heat Treating Association |
| MHTA | Mental Hygiene Therapist Assistant |
| MHTA | Minnesota Horse Training Academy |
| MHTA | Mexican Hometown Associations |