Cin
- .cin
- Barış Çin
- Card Identification Number
- Caribbean International Network
- Cervical intraepithelial neoplasia
- Chart Information Network
- Chibi North railway station
- Children in Need
- Chromosome instability
- Cincinnati
- Cincinnati Bengals
- Cincinnati Reds
- Cincinnati Union Terminal
- Constellation Airlines
- Contrast-induced nephropathy
- Convective inhibition
- Corporate Identification Number
- Corporação Industrial do Norte
- Cosine integral
- Craft Identification Number
- Cyanogen iodide
- Information needs
- Iostream
- Kadir Cin
- Miray Cin
- Qin (disambiguation)
- Tice Cin
- Werner Reichardt Centre for Integrative Neuroscience