Digital Microwave Radio, in the telecommunications industry.

the Democratic Republic of the Congo, a country in central Africa

Digital Mobile Radio, a Professional Mobile Radio technology specified by ETSI standards, ETSI TS 102 361-x.

Dennis MacAlistair Ritchie, a computer scientist

Designated marksman rifle

SDM-R (United States Army Squad Designated Marksman Rifle)

DMR (U.S. Marine Corps Designated Marksman Rifle)

Differentially methylated region (DMR) in the context of Genomic imprinting

Digital Re-Mastering, an IMAX Corporation proprietary technology used to convert 35mm motion picture contents to fit IMAX screens.

Dave Molyneux Racing, a company based on the Isle of Man that manufactures race sidecars owned by Dave Molyneux.