OMTA
| Acronym | Definition |
|---|---|
| OMTA | Ontario Massage Therapist Association (Canada) |
| OMTA | Ohio Music Teachers Association |
| OMTA | Off-Main-Thread Animations (Firefox) |
| OMTA | Old Mobeetie Texas Association |
| OMTA | Oregon Music Teachers Association, Inc. |
| OMTA | Oberlin Musical Theater Association (Oberlin College, Oberlin, Ohio) |
| OMTA | Open Mobile Terminal Alliance (mobile-phone industry) |
| OMTA | Orissa Medical Teachers' Association (India) |