SW

SW, sw and s/w may stand for:

Geography

• Southwest, one of the four ordinal directions
• The FIPS country code for Sweden
• SW postcode area, a group of postcode districts in southwest London, England
• SW, a car registration plate code for Schweinfurt, Bavaria, Germany
• SW, a car registration plate code for Swietochlowice, Silesian Voivodeship, Poland

Companies

• Southwestern Company, a publishing company designed for college students
• Sierra Wireless, Inc. (TSX: SW), manufacturer
• Smith & Wesson
• Southern Water, a water company of England
• Southern Winds Airlines, a defunct Argentine airline
• The IATA code for Air Namibia
• Southwest Airlines, an American airline

Military

• Steelworker (US Navy), U.S. Navy occupational rating
• Enlisted Surface Warfare Specialist designator in US Navy

Other uses

• Swahili language, by ISO 639 alpha-2 code
• Sw., abbreviation for Olof Swartz, author when citing a botanical name
• Software (disambiguation)
• Screeching Weasel, a punk rock band
• Band 3, a protein
• Samurai Warriors
• Shattered World, a MUD
• Adobe Shockwave
• Shortwave radio, radio communications in the 1.6–30 MHz band
• Shortwave radiation, electromagnetic radiation in visible and near visible bands
• Snow White, a story written by the Grimm brothers
• Socialist Worker
• Social worker
• Sport wagon
• Star Wars
• Station wagon, a car body style
• Steven Wilson, an English musician
• Storage Wars, television show on A&E
• the Unified Soil Classification System symbol for well graded sand
• Strike Witches, a Japanese animated series
• Sweeper, a position in association football