MMJ
# MMJ

MMJ may refer to:

* Medical marijuana, cannabis prescribed by physicians for their patients
* MMJ (band) [tl], Filipino singing duo
* Modified Modular Jack, a six-pin modular connector used by Digital Equipment Corporation on their computers and peripherals.
* Moscow Mathematical Journal, a quarterly international academic journal published by the Independent University of Moscow
* My Morning Jacket, an American rock band
* The IATA airport code of Matsumoto Airport in Matsumoto, Nagano Prefecture, Japan
* The ISO 639-3 identifier code for the Majhwar language
