| Acronym | Definition |
|---|
| JM | Jamaica (including Morantisand Pedrocayois) |
| JM | John Mayer (musician) |
| JM | Johns Manville (Berkshire Hathaway) |
| JM | Journal of Mammalogy |
| JM | Jim Morrison (The Doors) |
| JM | Jean Monnet (various meanings) |
| JM | James Monroe |
| JM | Joni Mitchell (singer) |
| JM | Jennette McCurdy (actress and musician) |
| JM | Jack's Mannequin (band) |
| JM | Air Jamaica (IATA airline code) |
| JM | Jedi Master (Star Wars) |
| JM | Joe Mama |
| JM | John Mellencamp |
| JM | Johnny Marr (musician) |
| JM | Junior Mafia (rap group) |
| JM | Jones Motors (travel company, Wales, UK) |
| JM | Job Manual |
| JM | Joint Mission |
| JM | Jumpmaster (US Army) |
| JM | John Myung (Dream Theater) |
| JM | Journey Management |
| JM | Joe Millionaire (Fox reality series) |
| JM | Joint Menu |
| JM | Just Messing |
| JM | Jumper Master (USDAA dog agility title) |
| JM | Jahresmiete (German: annual rent) |
| JM | Jump On Minus |
| JM | Jelinski-Moranda Model (model for software failures) |
| JM | JTIDS Module |
| JM | Jamaat ul Muslimeen |
| JM | Just Mac network |
| JM | Jump Migration |
| JM | Mongoloide Janota (Portugal-Lisboa) |