MJN may refer to:
* MJN, IATA airport code for
Amborovy Airport
*
Mead Johnson Nutrition, an American manufacturer of infant formula
* MJN Air, a fictional airline in the radio series, ''
Cabin Pressure''
*
MJN v News Group Newspapers Ltd, a 2011 privacy case in English law decided by the High Court of Justice
* MJN, abbreviation of Warsaw-based association
Miasto Jest Nasze
{{disambiguation