| Abbreviation | Definition |
|---|---|
| CIIB-B | Citi Islamic Investment Bank Bahrain |
| CIMB | Chinese Indian Malay Bank |
| CIMB | Cina India Melayu Bank |
| CIMB | Commerce International Merchant Bank |
| CIMB | Commerce International Merchant Bankers |
| CIN | Customer Identification Number |
| CIP | Cash Instalment Plan |
| CIP | Covered Interest |
| CIPS | Cross-Border Inter-Bank Payments System |
| CIR | Cox - Ingersoll - Ross interest rate model |
| CIR | Cut Interest Rate |
| Cir. | circular |
| CISLA | Customer Information System for Loans and Advances |
| CITI | Citibank |
| CITS | Cheque Image Truncation System |
| CKB | California Korea Bank (Los Angeles, CA) |
| CKB | Crnogorska Komercijalna Banka (Serbian: Montenegrin Commercial Bank; Montenegro) |
| CKFB | Central Kitsap Food Bank |
| cl | clerk |
| CL | Consumer Lending |