MTN

MTN may refer to:
 * an abbreviation of mountain
 * MTN Group, mobile telephone network operator in 2 regions; African and Middle Eastern countries
 * MTN-Qhubeka, cycling team sponsored by the telephone company
 * Maritime Telecommunications Network, satellite phone network
 * Martin State Airport, Baltimore, US, IATA code
 * Mauritania, IOC and ITU code
 * Manitoba Television Network, former branding of CHMI-TV, now known as Citytv Winnipeg
 * MTN (TV station), Griffith, New South Wales, Australia
 * Medium term note, a debt note
 * Michigan Talk Network, radio network
 * Metriol trinitrate, a liquid explosive similar to nitroglycerin
 * Montana Television Network, US
 * Montenegro, UNDP-Code
 * Mountain Air Cargo, ICAO airline designator
 * MountainWest Sports Network, dedicated to the Mountain West Conference
 * Multilateral trade negotiations, trade talks associated with the General Agreement on Tariffs and Trade and World Trade Organization
 * Mountain Dew (stylized as Mtn Dew), carbonated soft drink