CBIS may stand for:
Central Bureau of Investigation and Statistics, former civilian intelligence agency of the Republic of China (1912-1949). The Chinese Biological Investigators Society: a non-profit professional organization of life sciences and education. Columbia Books & Information Services: an American company that serves as a publisher of reference works, online databases, and mailing lists. Caleb British International School, an international school in Lekki, Lagos State, Nigeria
See also
CBI (disambiguation) for the singular of CBIs