BCL may stand for:
- the ISO 639-3 code for the Central Bikolano language
- Bachelor of Civil Law, the name of various degrees in law in English-speaking countries
- Baltimore Catholic League
- Bangladesh Chhatra League, the student wing of Bangladesh Awami League
- Bass clarinet
- Either one of two leagues that form the Bay Area Conference, part of the North Coast Section of the California Interscholastic Federation
- Bay Counties League – West (BCL West) which has 16 schools
- Bay Counties League – East (BCL East) which has 10 schools
- British common law
- Baseball Challenge League
- Broadcast Communications Limited (New Zealand), now Kordia
- Barra del Colorado Airport in Barra del Colorado, Costa Rica
Read more about BCL: Technology, Science, Logic