BSL

BSL may refer to:

Business

• Boyne Smelters Limited, an Australian-based aluminium smelter company
• Black Star Line, a former shipping line owned by Marcus Garvey
• Brookdale Senior Living, a U.S. company that operates senior residences
• BlueScope Steel Limited, an Australian-based flat product steel producer

Education

• Bachelor of Science in Law, an academic degree
• The British School of Lome, a school in Togo, West Africa
• Transport Phenomena (book), an engineering textbook also known by its authors' initials (Bird, Stewart, and Lightfoot)
• Bangladesh Chhatra League, a students' political organisation in Bangladesh

Linguistics

• Bulletin de la Société de Linguistique de Paris
• British Sign Language
• Bhutanese Sign Language

Science and computing

• Biosafety level, also referred to as Biohazard Safety Level
• Boost Software License, a license popular for C++ projects
• The Bulletin of Symbolic Logic from the Association for Symbolic Logic
• Bootstrap loader, the full term for the software involved in booting a computer

Sports

• Basketball Super League (Turkish: Basketbol Süper Ligi), Turkey's premier men's basketball league
• Israeli Basketball Super League, a former name of Israel's premier men's basketball league, now the Israeli Basketball Premier League
• Bafakhy Super League

Transportation

• EuroAirport Basel Mulhouse Freiburg, by IATA airport code
• Broad Street Line, a subway line in Philadelphia, Pennsylvania

Other uses

• Biologic Space Laboratories, the location of the Metroid Fusion video game
• Beam Stage Loader, a machine that forms part of a longwall mine
• Blood sugar level
• Breed-specific legislation, a law to prohibit or restrict the keeping of particular types of dog