- DMX stands for Data Mining Extensions (Microsoft SQL Server)
- DMX stands for Dark Man X
- DMX stands for Direct Matrix Architecture (Symmetrix/EMC)
- DMX stands for Digital Music Express (commercial satellite broadcasting service)
- DMX stands for Digital Multiplexing (used in theatrical lighting industry)
- DMX stands for Dancemaniax (game)
- DMX stands for Direct Media Exchange
- DMX stands for Divine Master of the Unknown (game)
- DMX stands for Dirt Motor Cross
- DMX stands for Data Multiplex Unit
DMX