JDM is an abbreviation or initialism that may refer to:
- Java Data Mining
- Java Device Manager, Nortel Device Manager
- Japanese domestic market - car models and parts unique to Japan
- Jeannie Dance Music (JDM) - This term was coined, By "The Magic Of John Sanchez"(Feb-2000).
- Jesus Disciples Movement
- Joint Design Manufacturing
- Juvenile dermatomyositis
- Jornada Del Muerto Motorcycle Riders Association
- Judgment and Decision Making, a subfield of psychology
- People
- James Douglas Morrison (Jim Morrison), singer
- Jens Dyekjaer Madsen, inventor of the original device programmer used for programming microcontrollers such as the PIC line from Microchip Technology
- Jeffrey Dean Morgan, actor
- Jonathon Miller, BL player