Similar to ソニーチョコレート事件
 - CB無線
 - CCDイメージセンサCharge-coupled device
 - CD4CD4
 - CDC 6600CDC 6600
 - CDix
 - CeCILLCeCILL
 - CFBDSIR 1458+10CFBDSIR J145829+101343
 - CFNM
- CGS ジャカードフォーマット
 - ChIA-PETChIA-PET
 - CHOP療法CHOP (chemotherapy)
 - CIRENECIRENE
 - CnsMinYahoo Assistant
 - Code Excited Linear PredictionCode-excited linear prediction
 - Common Gateway InterfaceCommon Gateway Interface
 - Common Object Request Broker ArchitectureCommon Object Request Broker Architecture
- Common User AccessIBM Common User Access
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 - 利用者:Corvus splendens/試訳中記事1
 - CPA コンシェルジュ
 - CPO (DM Command)
 - CPUCentral processing unit
 - CPUIDCPUID
 - CPU時間CPU time
 - CRP CROSSROAD PROJECT
 - CTIA Wireless
 - CTRON
 - CUCVCommercial Utility Cargo Vehicle