MJM may refer to:
* Mbuji Mayi Airport, Democratic Republic of the Congo
* MJM Entertainment Group, an American media production and promotion company
* MJM International, a company set up by British businesswoman Michelle Mone
* Medebur language of New Guinea (ISO 639-3 code: mjm)
* MJM Australia, importer and former manufacturer of games
* MJM Music PL, Polish record label
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