| C | Carbon✓ Verified | Element |
| C | Clear | Others |
| C-DOT | Centre for Development of Telematics✓ Verified | Agency, Regulatory Body, Telecommunication, Technology |
| CA | Chartered Accountant✓ Verified | Designation / Rank, Finance |
| CA | Confidentiality Agreement✓ Verified | Business, Legal |
| CA | Conveyance Allowance✓ Verified | Business, Finance |
| CA | Cricket Australia✓ Verified | Organization, Sports, Cricket |
| CAD | Current Account Deficit✓ Verified | Business, Finance, Accounting |
| CAG | Comptroller and Auditor General of India✓ Verified | Agency, Economics, Finance, Organization |
| CAGR | Compound Annual Growth Rate✓ Verified | Finance, Investment |
| CAN | Cricket Association of Nepal✓ Verified | Association, Organization, Sports, Cricket |
| CapEx | Capital Expenditure✓ Verified | Business, Finance, Accounting, Investment |
| CBAM | Carbon Border Adjustment Mechanism✓ Verified | Business, Manufacturing, Legal, Policy, Pollution |
| CBDT | Central Board of Direct Taxes✓ Verified | Civic Administration, Finance, Taxation, Organization |
| CBI | Central Bureau of Investigation✓ Verified | Agency, Intelligence Agency, Government |
| CBIC | Central Board of Indirect Taxes and Customs✓ Verified | Agency, Finance, Taxation, Organization |
| CBS | Core Banking Solution✓ Verified | Business, Bank, Finance, Industry, Banking, Software |
| CBSSBI | Core Banking Solutions State Bank of India✓ Verified | Business, Bank, Finance, Industry, Banking, Software |
| CC | Chair Car✓ Verified | Transport, Railways, Travel |
| CC | Clearing Corporation✓ Verified | Finance, Stocks and Trading, Organization |
| CC | Cricket Canada✓ Verified | Organization, Sports, Cricket |
| CC | Cubic Capacity✓ Verified | Measurement Unit, Volume, Automobile |
| CCA | Cameroon Cricket Association✓ Verified | Association, Organization, Sports, Cricket |
| CCA | Chilean Cricket Association✓ Verified | Association, Organization, Sports, Cricket |
| CCA | Chinese Cricket Association✓ Verified | Association, Organization, Sports, Cricket |
| CCA | Cyprus Cricket Association✓ Verified | Association, Organization, Sports, Cricket |
| CCB | Croatia Cricket Board✓ Verified | Organization, Sports, Cricket |
| CCBM | Cricket Control Board of Maldives✓ Verified | Cricket |
| CCI | Contact Centre Infrastructure✓ Verified | Business |
| CCP | Certified Cost Professional✓ Verified | Business, Certification, Designation / Rank, Education |
| CD | Certificate of Deposit✓ Verified | Finance |
| CD | Compact Disc✓ Verified | Electronic Devices |
| CDA | Confidentiality Disclosure Agreement✓ Verified | Business, Legal |
| CDC | Centers for Disease Control and Prevention✓ Verified | Medical, Organization |
| CE | Conformité Européene✓ Verified | Benchmark, Regulatory Body, Quality |
| CEO | Chief Executive Officer✓ Verified | Business, Corporate, Designation / Rank |
| CEP | Certified Estimating Professional✓ Verified | Business, Certification, Designation / Rank, Education |
| CERIST | Centre de Recherche sur L'Information Scientifique et Technique✓ Verified | Agency, Government, Internet, Research Center |
| CFO | Chief Finance Officer✓ Verified | Designation / Rank, Finance |
| CFO | Chief Fire Officer✓ Verified | Designation / Rank, Disaster, Safety, Service |
| CFR | Case Fatality Rate✓ Verified | Medical |
| CGST | Central General Sales Tax✓ Verified | Taxation |
| CI | Competitive Intelligence✓ Verified | Business, Technology, Analytics |
| CID | Criminal Investigation Department✓ Verified | Agency, Government, Police |
| CIDCA | China International Development Cooperation Agency✓ Verified | Agency, Government |
| CII | Cost Inflation Index✓ Verified | Economics, Finance |
| CISA | Cybersecurity and Infrastructure Security Agency✓ Verified | Agency, Intelligence Agency, Internet, Security |
| CISF | Central Industrial Security Force✓ Verified | Military, Police |
| CJIS | Criminal Justice Information Services✓ Verified | Agency, Intelligence Agency, Police, Department, Law Enforcement, Legal |
| CMDRF | Chief Minister's Distress Relief Fund✓ Verified | Fund |