- DTRI stands for Duke Translational Research Institute (Duke Translational Medicine Institute; Duke University; Durham, NC)
- DTRI stands for Dominion Technology Resources, Inc. (Reston, VA)
- DTRI stands for Dairy Training and Research Institute (Philippines)
- DTRI stands for Dance Theatre of Rhode Island (Cumberland, RI)
- DTRI stands for Differential Thermo-Raman Intensity
DTRI