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Data Reference Model - US federal guidelines for computer data standards

Data Resource Management

Deese-Roediger-McDermott-Paradigm - A paradigm in Cognitive Psycholoy for the investigation of false memories

Design Reference Mission - A template for a NASA mission to Mars.

Deutsche Rennsport Meisterschaft (German: 'German Racing Championship'), 70's national racing series, best known as the "father of DTM"

Digital Radio Mondiale - a digital radio broadcasting standard

Digital Rectal Massage - A medical examination technique.

Digital Rights Management - Technologies to give content providers control over redistribution and access to material. Critics of these technologies use an alternate expansion, 'Digital Restrictions Management'.

Direct Rendering Manager - A Linux kernel module that gives direct hardware access to DRI clients. *

Direction du Renseignement Militaire - The Directorate of Military Intelligence of France.

Disability rights movement

Distributed Resource Management or Distributed Resource Manager - Computer software used to manage scheduling of batch jobs to other computers in a distributed computing cluster.

Dual Reciprocity Method

Dynamic Rate Management