IDM may refer to:

Science and technology

• Identity management, the management of the identity life cycle of an entity
  • Novell Identity Manager
• IDM Computer Solutions
• Integrated data management
• Integrated document management
• Intelligent device management, a type of enterprise software applications
• Integrated device manufacturer, a type of semiconductor company which designs, manufactures, and sells integrated circuit products
• Integrated Direct Metering, a real-time TTL metering method for ambient and flash light employed by the Pentax LX
• Internet Download Manager, a closed source software download manager
• Intelligent driver model, a microscopic traffic flow model

In computing, identity management (IdM) describes the management of individual principals, their authentication, authorization, and privileges within or across system and enterprise boundaries with the goal of increasing security and productivity while decreasing cost, downtime and repetitive tasks.