BISL may refer to:
- The British Ice Hockey Superleague, a professional ice hockey league in the United Kingdom between 1996 and 2003
- Business Information Services Library (capitalized BiSL), a framework used for functional and information management
- Business in Sport and Leisure, a British umbrella organization of a number of major sport and leisure companies
- British International School of Ljubljana, a school located in Ljubljana, Slovenia
- Bay Islands Sign Language, a village sign of Honduras notable for its tactile form.
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