BAS may stand for:

Most commonly:

  • BASIC programming language (file extension)


  • Biblical Archaeology Society
  • Birmingham Astronomy Society
  • Britain–Australia Society
  • Bulgarian Academy of Sciences

In computer science:

  • Broadband Access Server (see Broadband Remote Access Server)

In business administration:

  • Business Augmentation Services (BAS)


  • Bachelor of Applied Science
  • Bachelor of Arts and Science
  • Banc of America Securities
  • Bay St. Louis (Amtrak station) (Amtrak station code BAS)
  • Befreiungsausschuss Südtirol (South Tyrolean Liberation Committee)
  • Behavioural Activation System
  • Bergen School of Architecture (written Bergen Arkitekt Skole in Norwegian)
  • Belt alternator starter hybrid vehicle system from General Motors
  • Book of Alternative Services of the Anglican Church of Canada
  • Brake assist system in an automobile
  • British Art Show
  • British Antarctic Survey
  • Broadcast auxiliary service
  • Building automation system
  • Bulletin of Atomic Scientists
  • Business Activity Statement, an Australian Taxation Office form
  • Buttocks Augmentation Surgery
  • Breast Augmentation Surgery
  • Battalion Aid Station
  • Basic Allowance for Subsistence
  • BAS is the IATA airport code for Balalae, Solomon Islands.
  • BAS is the SIL code and ISO 639 alpha-3, for the Bassa language of Liberia.
  • Bank of America Stadium, a stadium in Charlotte, North Carolina and the home of the Carolina Panthers