2M or 2-M may refer to: 2m, or two metres 2 million Amateur radio 2-meter band 2M (alliance), a container shipping industry alliance between Maersk Line and MSC 2M (DOS), a DOS program that formats extra high capacity floppy disks 2M TV, a Moroccan state-owned TV station Moldavian Airlines, IATA airline designator 2M a prefix used by the Two Micron All-Sky Survey (2MASS) See also M2 (disambiguation) MM (disambiguation)