WMM

WMM may refer to:

Well-Manicured Man, a character in The X-Files
West Midlands Metro, a light-rail/tram system in West Midlands, England
Wide Mouth Mason, a Canadian blues-rock band
Windows Movie Maker, a video editing software package, and file format extension
Wi-Fi Multimedia or Wireless Multimedia Extensions (WME), a QoS implementation
Women Make Movies, an organization for women film-makers
World Magnetic Model, a digital model of the Earth's geomagnetic field
World Marathon Majors, championship style marathon competition