A spa is a therapeutic water treatment.

Spa or SPA may also refer to:

Water Day spa Destination spa Mineral spa Spa town, a town noted for its spa

Places Europe Circuit de Spa-Francorchamps, or Spa, a motor-racing circuit in Francorchamps, Belgium Spain, UNDP country code Spa, Belgium, a municipality in Belgium Spa, County Down, a village in Northern Ireland Spa, County Kerry, a village in Ireland

Other places South Pole–Aitken basin, an impact crater on the far side of the Moon Spa Creek, a tributary of the Severn River, Annapolis, Maryland, US

Art, entertainment and media SPA (band), a 1990s British band Spa (Sirius XM), a satellite radio music channel Screen Producers Australia, film industry organization Sony Pictures Animation, an American animation studio Summer Performing Arts Company, Grand Forks, North Dakota, US

Businesses and organizations Government and politics Saudi Press Agency Service Prosecuting Authority, an agency of the Ministry of Defence in the United Kingdom Seychelles Port Authority Socialist Party of America Socialist Party of Australia Socialistische Partij Anders (SP.A), a Flemish Social-Democratic Party Supreme People's Assembly, the parliament of North Korea

Education Schools of Planning and Architecture, in India Society for Popular Astronomy, UK

Business and industry Spa (mineral water), a brand of Belgian mineral water Scottish Publishers Association Sociedade Portuguesa de Autores, a Portuguese copyright-management company Software Publishers Association, former name of the Software and Information Industry Association Sudanese Professionals Association, Sudanese trade union and civic organisation S.P.A. (automobile), Società Piemontese Automobili, a car manufacturer (1908–1926)

Law and economics Sales and purchase agreement Special power of attorney, in law Special Protection Area, EU, for birds Società per azioni (S.p.A.), a type of public limited company in Italy

Science and technology Computing Secure Password Authentication Sense Plan Act, a robot control methodology Simple power analysis, a type of cryptographic attack Single-page application, a type of web application or app

Biology and medicine Scintillation proximity assay, for biochemical development and screening Spathoglottis, an orchid genus Spondyloarthropathy (SpA), any joint disease of the vertebral column

Vehicles Volvo Scalable Product Architecture platform, an automobile platform created by Volvo Cars

Philosophy Socrates, Plato and Aristotle, the traditional founders of Western philosophy

See also Hot tub Resort