M3, M-3 or M03 may refer to:

Computing and electronics

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  • Apple M3, a central processing unit in the Apple M series
  • Intel m3, a brand of microprocessors
  • M.3 (aka NF1/NGSFF), a specification for internally mounted expansion cards
  • Leica M3, a landmark 35mm rangefinder camera
  • Modula-3 (M3), a programming language
  • M3, a British peak programme meter standard used for measuring the volume of audio broadcasts
  • m3, a macro processor for the AP-3 minicomputer, the predecessor to m4
  • M3, a surface-mount version of the 1N4003 general-purpose silicon rectifier diode
  • M3 (email client), an unreleased email client for the Vivaldi browser

Entertainment

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Military

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Weapons

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Vehicles

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Music

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Science and medicine

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Transport

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Air transport

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Automobiles

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Roads and routes

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Rail transport

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Other uses

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See also

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