SW

SW, sw or s/w may stand for:

Companies

 * Air Namibia, IATA airline code
 * Sierra Wireless, Inc., TSX
 * Silk Way Airlines, an Azerbaijani private cargo airline
 * Slimming World, a weight loss company
 * Smith & Wesson, S&W, a firearms manufacturer
 * Southern Winds Airlines, a defunct Argentine airline
 * Southwestern Company, a publishing company designed for college students

Geography

 * Southwest, one of the four ordinal directions
 * Sweden (FIPS country code SW)
 * SW postcode area, southwest London, England
 * Schweinfurt, Bavaria, Germany, vehicle registration code
 * Swietochlowice, Silesian Voivodeship, Poland, vehicle registration code

Occupations

 * Steelworker (US Navy), an occupational rating
 * Enlisted Surface Warfare Specialist, a US Navy occupational rating
 * Sex worker

Computing and telecommunications

 * Shortwave radio band, 1.6–30 MHz
 * Shortwave radiation, in visible and near visible bands
 * Smith–Waterman algorithm, algorithm for performing local sequence alignment

Other uses in science and technology

 * Sport wagon or crossover, an automobile configuration
 * Station wagon, a designation of some manufacturers
 * Olof Swartz, botanist, abbreviated Sw. in botanical citations
 * Band 3, a protein
 * Unified Soil Classification System symbol for well graded sand

Other uses

 * Sw., taxonomic author abbreviation for Olof Swartz (1760–1818), Swedish botanist and taxonomist
 * Swahili language (ISO 639 alpha-2 code "sw")
 * Star Wars, a science fiction media franchise
 * Suicide watch
 * "S.W", a song by Blonde Redhead from their 2007 album 23
 * Shadow Warrior, a series of computer games
 * Social work