MFN may refer to: MFN, acronym for Most favoured nation status in international relations MfN, acronym for Museum für Naturkunde, a natural history museum in Berlin, Germany MFN, the IATA code for Milford Sound Airport, New Zealand Metromedia Fiber Network, Inc., now known as AboveNet Multi-frequency network Music for Nations, a British record label "MFN", a song by Cibo Matto from their 2014 album Hotel Valentine de:MFN