SWA may refer to:
Arts and media SWA (band), an American punk rock group SWA (magazine), an Indonesian business periodical
Businesses and organisations Scotch Whisky Association, Scotland Society of Women Artists, UK Southwest Airlines, US (ICAO code and common short-hand name) Southwestern Advantage, US Stardom World Association, Japan Swatantra Party, India
Language Swahili language, of East Africa (ISO 639 code)
Places South West Africa, now Namibia Eswatini (UNDP code) Shantou Waisha Airport, China (IATA code prior to 2012) Jieyang Chaoshan International Airport, China (IATA code from 2012) Swansea railway station, Wales (CRS code)
Technology SOAP with Attachments, file transfer for web services Steel Wire Armoured (SWA) Cable
Other SWA, IOC code for artistic swimming at the Summer Olympics Slow wave activity, which is related to slow wave sleep