DMT may refer to:
In chemical substances:
- Desoxymethyltestosterone, a designer anabolic steroid
- Dimethyltryptamine, a naturally occurring psychedelic compound
- Dimethyl terephthalate, a polyester precursor
- DMT1 (Divalent Metal Transporter 1) a transporter involved in human iron metabolism.
In sport:
- Diamant or DMT, an Italian company specializing in the manufacture of high end road and MTB cycling shoes.
In other uses:
- Digital Monetary Trust, an anonymous internet banking system using electronic money
- Discrete multi-tone modulation, a form of orthogonal frequency-division multiplexing (OFDM)
- Display Monitor Timing, a VESA standard that lists display timings for various resolutions and screen sizes
- Diver Medic Technician, a certification offered by the National Board of Diving and Hyperbaric Medical Technology
- Dʿmt, a historical kingdom in what is now Eritrea and northern Ethiopia
- Dreamtime, a creation belief from the Australian Aborigines
- Dublin Mean Time, which was 25 minutes behind Greenwich Mean Time 1880-1916.