MJN

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