As a three-letter acronym or abbreviation DSM or dsm can mean several things:

General

• DSM (company), an international chemicals company based in the Netherlands
• DSM (band), a Dutch rap band from the city of Utrecht
• Defense Suppression Missile
• Dependency Structure Matrix
• Deputy Stage Manager
• Design Structure Matrix
• Demand Side Management of energy
• the IATA airport code for Des Moines International Airport in Des Moines, Iowa, USA (and sometimes used as a written abbreviation for the city of Des Moines itself)
• Diagnostic and Statistical Manual of Mental Disorders
• Diamond Star Motors: the Eagle Talon, Mitsubishi Eclipse, and Plymouth Laser are commonly referred to as "DSMs".
• Direct stiffness method
• Distinguished Service Medal

• United Kingdom Distinguished Service Medal

• United States Distinguished Service Medal
• Vietnam Distinguished Service Medal
  • Downing Street memo
• Dynamic Spectrum Management
• dSm is an abbreviation for dwarf irregular galaxy of the type with some structure. See dwarf galaxy, irregular galaxy.

Computing

• Data Storage Management
• DEC Standard MUMPS, a version of the MUMPS programming language created by Digital Equipment Corporation
• Decision Support Matrix
• Deep Sub-Micrometre (DSM) Technology
• Device Specific Module
• Digital Equipment Corporation
• digital storage media
• Digital Surface Model (in GIS)
• Distributed Session Manager, an optional feature of Cisco Secure Access Control Server software
• Distributed Systems Management
• Distributed shared memory
• Domain-specific modelling

DSM