BS, B.S., Bs or bs may refer to:
Young Boys of Bern is a Swiss sports club based in the capital city Bern. It is widely referred to as Young Boys, or as Young Boys Bern abroad, and is abbreviated to YB (German pronunciation: [ˈiː pε], i.e., the Y is pronounced as I).
BSD licenses are a family of permissive free software licenses, imposing minimal restrictions on the use and redistribution of covered software.
A BSAVE Image (aka "BSAVED Image") as it is referenced in a graphics program is an image file format created usually by saving raw video memory to disk (sometimes but not always in a BASIC program using the BSAVE command).
The Triumph Trident (or BSA Rocket 3) was a technically advanced, high-performance roadster (or standard) motorcycle made by Triumph Engineering and Birmingham Small Arms Company (BSA) from 1968 to 1975, and sold under both the Triumph and BSA marques.
The Software Alliance, also known as BSA, is a trade group established by Microsoft Corporation in 1988 and representing a number of the world's largest software makers and is a member of the International Intellectual Property Alliance.