BCI may refer to:

Organizations

• Bar Council of India
• Barts Cancer Institute, London, UK
• Bat Conservation International
• Battery Council International, American trade association
• BCI, an investigative law enforcement agency for the U.S. state of Ohio
• BCI Bus, an Australian bus and coach manufacturing company
• BCI Engineers & Scientists, Inc., formerly Bromwell & Carrier, Inc.
• Better Cotton Initiative
• Bonobo Conservation Initiative
• British Columbia Investment Management Corporation
• Broadcasting Commission of Ireland
• Broward Correctional Institution, Florida, US
• Business Continuity Institute, UK

Banks

• Banco de Crédito e Inversiones, a Chilean bank
• Banca Commerciale Italiana, a defunct Italian bank
• Banco Comercial e de Investimentos, in the list of banks in Mozambique
• Bank of the Cook Islands

Education

• Benedict XVI Catholic Institute, Negombo, Sri Lanka
• Bluevale Collegiate Institute, Ontario, Canada
• Brantford Collegiate Institute, Ontario, Canada
• Brockville Collegiate Institute, Ontario, Canada
• Bahria College Islamabad, Pakistan

Science

• Boa constrictor imperator
• Book Citation Index
• Brain–computer interface

Other

• Barro Colorado Island, in Panama Canal
• Black Crown Initiate
• Baoulé language, ISO-639-2 language code bci
• Barcaldine Airport, IATA airport code "BCI"