Similar to 間島共産党暴動
 - C413S
 - C450 (航空機)SNECMA Coléoptère
 - C4IシステムC4I
 - CA-30 (軍用車両)Jiefang CA-30
 - CaclsCacls
 - Calculus on Manifolds (書籍)Calculus on Manifolds (book)
 - CB無線
 - CCDイメージセンサCharge-coupled device
 - CD4CD4
 - CDC 6600CDC 6600
 - CeCILLCeCILL
 - CFBDSIR 1458+10CFBDSIR J145829+101343
 - CFNM
- CGS ジャカードフォーマット
 - ChIA-PETChIA-PET
 - CIRENECIRENE
 - CnsMinYahoo Assistant
 - Code Excited Linear PredictionCode-excited linear prediction
 - Common Gateway InterfaceCommon Gateway Interface
- Common User AccessIBM Common User Access
 - Component Object ModelComponent Object Model
 - 利用者:Corvus splendens/試訳中記事1
 - CPA コンシェルジュ
 - CPO (DM Command)
 - CPUIDCPUID
 - CPU時間CPU time
 - CRP CROSSROAD PROJECT
 - CTIA Wireless