JM

JM may mean:

* Jama'at al-Jihad al-Islami an Islamic terrorist group active in Central Asia
* Jamaica (ISO 3166-1 alpha-2 country code)
* the IATA code for Air Jamaica
* Jerónimo Martins, a Portuguese company
* Jack's Mannequin, an piano rock band fronted by Andrew McMahon of Something Corporate.
* John Mayer, an American singer-songwriter.
* Jaysh Muhammad, an Iraqi insurgency group.
* Shortened form of Jim, as in Jim J. Bullock
* Jay Em, Wyoming, a community in the United States]
* Fender Jazzmaster, an American guitar model
* Jordan McCoy