| Abbreviation | Definition |
|---|---|
| MTI | Mobile Tech Inc |
| MTI | Mobile Technologies Inc |
| MTI | Monica Thakrar Inc |
| MTK | MarkerTeK |
| MTK | MerkerTeK |
| MTK | Microtek Laboratories |
| MTL | Mass Transfer Limited |
| MTLC | Montana Territorial Land Company |
| MTM | Mary Tyler Moore Productions |
| MTM | More Than Music |
| MTM | Motoren Technik Meyer |
| MTMC | Micros to Mainframes Inc |
| MTN | Maritime Telecommunications Network |
| MTN | Mobile Telephone Network |
| MTNL | Mahanagar Telecom Nigam Limited |
| MTNL | Mahanagar Telecom Nigam Ltd |
| MTNL | Mahanagar Telephone Nigam Ltd |
| MTNL | Mahanagar Telephone Nigam, Limited |
| MTO | Made To Order |
| MTO | Make To Order |