| Rank | Abbreviation | Meaning |
|---|
| ***** | MHTA | Manual Highway Tape Applicator
| |
| ***** | MHTA | Mental Health Trust Authority
| |
| ***** | MHTA | Morecambe Hotel and Tourism Association
| |
| **** | MHTA | Metal Heat Treating Association
| |
| **** | MHTA | Manufactured Home Tax Act
| |
| **** | MHTA | Mauritius Head Teachers Association
| |
| **** | MHTA | N-maleamide homocysteine thiolactone amide
| |
| *** | MHTA | Mental Hygiene Therapy Aide
| |
| *** | MHTA | Multistate Highway Transportation Agreement
| |
| *** | MHTA | Medical Home Training Academy
| |
| *** | MHTA | Mental Hygiene Therapist Assistant
| |
| *** | MHTA | Montana Healthcare Telecommunications Alliance
| |
| ** | MHTA | Maple Heights Teachers Association
| |
| ** | MHTA | Michigan Horticulture Teachers Association
| |
| ** | MHTA | Mental Health Therapy Aide
| |
| ** | MHTA | Minnesota High Tech Association
| |
| ** | MHTA | Minnesota High Technology Association
| |
| * | MHTA | Michigan Horticultural Therapy Association
| |
| * | MHTA | Minnesota Horse Training Academy
| |
| * | MHTA | Manitoba Highway Traffic Act
| |
| * | MHTA | Mexican Hometown Associations
| |
| * | MHTA | Mars Has the Advantage
| |