- DMT I stands for Divalent Metal Transporter (protein)
- DMTI stands for Dismount Moving Target Indicator (radar)
- DMTI stands for Desktop Mapping Technologies, Inc.
- DMTI stands for Diffusion Matériels et Techniques Industrielles (French industrial equipment company)
- DMTI stands for Digital Mapping Technologies Inc.
- DMTI stands for Digital Moving Target Indicator
- DMT I stands for Diabetes Mellitus Type 1
DMT I