| Acronym | Definition |
|---|
| OTMC➣Otago Tramping and Mountaineering Club (New Zealand) |
| OTMC➣Old Town Mexican Cafe (restaurant) |
| OTMC➣Office of Technology Management and Commercialization (various organizations) |
| OTMC➣On-Board Trajectory Measurements Complex |
| OTMC➣On-Board Trajectory Management Complex |
| OTMC➣Online Travel Management Company |