DMM

• DMM Corporation (Digital Media Mart), a Japanese company which sold video games including eroge
• DMM.com, its later incarnation
• DMM Wales, a Welsh manufacturer of rock-climbing equipment

• Digital multimeter, a multi-functional electronic measuring instrument
• Digital Molecular Matter, a computer game physics engine developed by Pixelux
• Direct metal mastering, a vinyl record manufacturing technology by Teldec
• Disease Models & Mechanisms, a journal by the Company of Biologists
• Dynamic-maturational model of attachment and adaptation, a transdisciplinary model describing relationship dynamics and attachment theory

• Daniel Martin Moore, American singer
• Domestic Mail Manual, a U.S. Postal Service guide
• King Fahd International Airport (IATA code: DMM), Dammam, Saudi Arabia
• Project DMM, a Japanese music group whose work is used on TV shows

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