| Acronym | Definition |
|---|
| MTN | Mountain |
| MTN | Maintenance |
| MTN | Multilateral Trade Negotiations |
| MTN | Medium-Term Note (banking/finance) |
| MTN | Mobile Telephone Number |
| MTN | Military Training Network (various schools) |
| MTN | Mobile Telephone Network (South African cellular service provider) |
| MTN | Mahanagar Telephone Nigam (India) |
| MTN | Mobile Telecommunications Network (various locations) |
| MTN | Marine Turtle Newsletter (quarterly publication) |
| MTN | Microbicide Trials Network |
| MTN | Maritime Telecommunications Network |
| MTN | Minneapolis Telecommunications Network |
| MTN | Mortgage Trust Note |
| MTN | Mid-Term Notes (banking/finance) |
| MTN | Making the News (UK; education) |
| MTN | Michigan Teacher Network |
| MTN | Michigan Team Nutrition |
| MTN | Multi-Tactical Datalink Network |
| MTN | Midtown North (NYPD) |
| MTN | Main Telephone Number |
| MTN | Male to Nonbinary (gender) |
| MTN | Manitoba Television Network |
| MTN | Magic Travellers Network (New Zealand) |
| MTN | Montana Television Network |
| MTN | Mixed-Mode Twisted Nematic (liquid crystal display) |
| MTN | Mobile Technology Network |
| MTN | Message Transport Network (DSC) |
| MTN | Mexican Talent Network |
| MTN | Marking Technologies Network |
| MTN | Message Transfer Network (Sprint) |
| MTN | Multi-Rate Transmission Node |
| MTN | M22 Tactical Network |
| MTN | Mannar Thirumalai Naicker College (India) |
| MTN | Baltimore, MD Martin Airport (airport code) |
| MTN | Metric Tonne Net |
