| Abbreviation | Definition |
|---|---|
| MTO | Mensch Technologie Organisation |
| MTO | Multimodal Transport Operator |
| MTO | Munger, Tolles, Olson, LLP |
| MTPC | Mitsubishi Tanabe Pharma Corporation |
| MTPC | Mitsubishi Tanabe Pharmaceutical Corporation |
| MTPL | Mahansaria Tyres Private Ltd |
| MTPL | MMTC Transnational Pte Ltd |
| MTR | Mass Transit Railway |
| MTR | Master Track Records |
| MTR | Mavalli Tiffin Rooms |
| MTR | Moon Town Records |
| MTRC | Modern Town Redevelopment Company |
| MTRC | Modern Town Redevelopment Corporation |
| MTS | Manitoba Telephone Services |
| MTS | Master Tech Services |
| MTS | Mer Telemanagement Solutions |
| MTS | Microsoft Technical Support |
| MTS | Mobilna Telefonija Srbije |
| MTS | Moilasion Thomassie And Spratley |
| MTS | Moilasion, Thomassie, and Spratley |