USW

USW may refer to:

Companies

 * HumoAir, an Uzbekistani airline
 * Ugar Sugar Works, an Indian company based in Ugar Khurd, Karnataka
 * US West, an American telecommunications provider

Trade unions and professional associations

 * Union of Soviet Writers
 * United Seafood Workers, an American trade union to which the racketeer Joseph Lanza belonged
 * United Steelworkers, a North American trade union

Universities and educational institutions

 * Universitätsseminar der Wirtschaft, an educational institution that merged into the European School of Management and Technology
 * University of South Wales
 * University of Suwon, a university in Hwaseong, South Korea
 * University of the Southwest, a private Christian university in Hobbs, New Mexico, US

Warfare and weaponry

 * Ultrasonic weapon
 * Undersea warfare
 * Universal Service Weapon, a class of firearm produced by Brügger & Thomet
 * Unrestricted submarine warfare

Other uses

 * Boggs Field, an airport near Spencer, West Virginia, US
 * Ultra-shortwave, see: Very high frequency
 * Ultrasonic spot welding
 * Und so weiter, a German term meaning 'et cetera'