DMR is an initialism that may refer to: Biology Differentially methylated regions, a genomic region that is methylated differentially on each parental allele Dwarf mistletoe rating system, a scale for rating the severity of a dwarf mistletoe infection Government Device Master Record, a folder containing a technical description of a device controlled by regulating authorities (such as the US Food and Drug Administration) Discharge Monitoring Report, submission report to the United States Environmental Protection Agency Department of Main Roads (New South Wales), Australia Department of Main Roads (Queensland), Australia Media Dance Music Report, bi-weekly U.S. trade magazine The Des Moines Register, daily morning newspaper in Des Moines, Iowa DMR Books, small Chicago-based book publisher Technology Differential Microwave Radiometer, an instrument on the Cosmic Background Explorer satellite Digital mobile radio, open digital radio standard for professional mobile radio and amateur radio users Dual modular redundancy, redundancy back-up system IMAX Digital Media Remastering, process for regular movies to render on IMAX screens People Dennis MacAlistair Ritchie (1941–2011), American computer scientist Other uses Designated marksman rifle, weapon used by a squad designated marksman in a United States Army's fireteam infantry squad Designated Member Review, where a committee designates one or more members of the committee to review a decision-making process or a protocol or procedure Direct market reseller, also known as an e-tailer, a company that sells directly to consumers online without operating storefront operations Distance medley relay, a track event consisting of 1,200, 400, 800, and 1,600-meter legs Divergent modes of religiosity, a theory of the growth and development of religions