CDW is an American technology corporation.
CDW may also refer to:
- CDW Building, Tsuen Wan, Hong Kong, China
- Charge density wave, in quantum physics
- Collision damage waiver, car rental insurance
- Congregation for Divine Worship, a former name of the Dicastery for Divine Worship and the Discipline of the Sacraments
- Essex County Airport, New Jersey, U.S. (by IATA code)
- Civil danger warning, a specific area message encoding code in the United States