MMW can refer to:
- Medeski Martin & Wood, a jazz trio.
- Malibu's Most Wanted, a parody on life in the ghettos of L.A.
- Miami Music Week, another term describing Winter Music Conference and Ultra Music Festival.
- Millimetre wave, electromagnetic radiation.
- MMW Enterprises, Inc., a construction company based in Jackson, OH.
- MMW, a radar tracking station in Roi-Namur island in the north part of the Kwajalein atoll in the Marshall Islands.
- Muppets Most Wanted, a 2014 film.