SW

• 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 intercardinal 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 ==Science and technology==

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 • , Store Word, an RISC-V instruction 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 • "S.W", a song by Blonde Redhead from their 2007 album 23 • Social work • Sawah Besar railway station, a railway station in Jakarta, Indonesia