ECW may refer to:

Professional wrestling

• 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

Wrestling television programs

• 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

Military

• 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

Other

• 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 −35 °F (−37 °C) or colder with winds of less than 5 mph (8 km/h; 2 m/s)
  • In Canada, based on either the temperature or the wind chill being a certain value for at least 2 hours; the values range from −30 °C (−22 °F) in the warm temperates to −55 °C (−67 °F) 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

This disambiguation page lists articles associated with the title ECW.
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