XMA

XMA may refer to:


 * Extreme martial arts, a sport that combines elements from martial arts, acrobatics, and gymnastics, with an emphasis on showmanship
 * XMA (audio format), Extensible Management Agent, the native Xbox 360 compressed audio format
 * extended memory area; an addressable region of memory under a DOS Extender
 * Expanded Memory Adapter, an IBM standard for XT-era expanded memory
 * XMA, part of the Westcoast Group that distributes IT equipment