CBL may refer to:

CBC Radio CBL-FM, a CBC Radio Two radio station in Toronto, Ontario CBLA-FM in Toronto had the call sign CBL for much of the period when it was on the AM band (1937–99)

Sports leagues and associations Canadian Baseball League (2003) (defunct) Canadian Baseball League Canadian Basketball League Celebrity Badminton League, an India-based badminton league for celebrities China Baseball League, the pre-eminent men's baseball league in China Chinese Basketball League, former name of the National Basketball League, a men's semi-professional basketball minor league in China Citrus Belt League, a division II high school sports league in Southern California. Conference Basketball League, a former men's basketball minor league in New Zealand Continental Baseball League Continental Basketball League, a men's professional basketball minor league in the United States

Institutions Carl Barks Library Catholic Benevolent Legion Central Bank of Liberia Central Bank of Libya Chesapeake Biological Laboratory Chester Beatty Library Conemaugh and Black Lick Railroad, a defunct railroad in Pennsylvania

Science and engineering Cannabicyclol, a cannabinoid found in cannabis CBL (gene) found in mammals Calculator-Based Laboratory, a data-collection and logging system by Texas Instruments Common Based Linux CBL-Mariner, a free and open source cloud infrastructure operating system based on Linux and developed by Microsoft Composite Blocking List Computer-based learning CBL / Computer Bureau Limited, parent company of Datacom Group Convective Boundary Layer, the part of the atmosphere most directly affected by solar heating of the Earth's surface Croatian Biographical Lexicon

Other uses CBL & Associates Properties CBL, the ticker symbol for CBL & Associates Properties Cambuslang railway station, a UK railway station Carbon Based Lifeforms, a Swedish electronic music duo Cement bond log Cerebellum Challenge-based learning Choice-based lettings (see Public Housing#United Kingdom) Clare Boothe Luce Confidence-based learning Controlled buoyant lift, an underwater diver-rescue technique used in recreational scuba diving Cross-body lead, a dance move Cross-border leasing