CCNI

CCNI may refer to:
 * Computational Center for Nanotechnology Innovations, supercomputing centre at the Rensselaer Polytechnic Institute, USA
 * Charity Commission for Northern Ireland, government body regulating charities in Northern Ireland
 * CCNI (gene), also known as Cyclin 1
 * CCNI S.A., Compañía Chilena de Navegación Interoceánica S.A. (Chilean Interoceanic navigation company)
 * Comité consultatif national de l'immunisation (CCNI), French name of the National Advisory Committee on Immunization (NACI) of Canada