CIA (disambiguation)
- C.I.A. (band)
- CAN in Automation
- CIA
- CIA (TV series)
- CIA triad
- California Institute of Abnormalarts
- Cambala Investigation Agency
- Canadian Institute of Actuaries
- Cardiff International Arena
- Central India Agency
- Certified Internal Auditor
- Chemical Industries Association
- Chennai International Airport
- Chia (disambiguation)
- Chilkoot Indian Association
- Ciampino–G. B. Pastine International Airport
- Clark International Airport
- Cleveland Institute of Art
- Coimbatore International Airport
- Comrade in America
- Creators of Intense Art
- MOS Technology CIA
- Plastic Death
- Sia (disambiguation)
- The Art Institute of Colorado
- The Culinary Institute of America