ECW

ECW may refer to:

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Professional wrestlingEdit

Extreme Championship Wrestling (originally Eastern Championship Wrestling), a professional wrestling promotion that operated from 1992 to 2001
The Alliance (professional wrestling) (originally the WCW/ECW Alliance), a 2001 World Wrestling Federation stable that included Extreme Championship Wrestling
ECW (WWE brand), a World Wrestling Entertainment brand from 2006 to 2010 based on the Extreme Championship Wrestling promotion

ECW Hardcore TV, produced by the Extreme Championship Wrestling promotion from 1993 until 2000
ECW on TNN, produced by the Extreme Championship Wrestling promotion from 1999 to 2000
WWE ECW, produced by World Wrestling Entertainment from 2006 to 2010 based on the Extreme Championship Wrestling promotion

Electronic counter-warfare, a set of military measures to counteract enemy radars, missile-guidance, etc.
English Civil War(s), a series of armed conflicts and political machinations which occurred in England from 1642 to 1651

Eastern Coach Works, a defunct bus body building company from England
ECW (file format), an enhanced compressed wavelet file format designed for geospatial imagery
ECW model in chemistry for Lewis acid–Lewis base interactions
ECW Press, a Canadian book publisher
Extreme Cold Warnings are issued to inform the public about active or imminent severe cold temperatures in their region that are expected to last for a while; examples:
- In the U.S., when temperatures fall to Template:Convert or colder with winds of less than Template:Convert
- In Canada, based on either the temperature or the wind chill being a certain value for at least 2 hours; the values range from Template:Convert in the warm temperates to Template:Convert in parts of the Arctic
Extreme Cold Weather clothing for arctic or mountainous areas
- Extended Cold Weather Clothing System worn by members of the United States Army