Similar to アッピウス・クラウディウス・クラッスス・インレギッレンシス・サビヌス

C/2023 A3 (Tsuchinshan–ATLAS)

C/2024 S1 (ATLAS)

C/2025 F2 (SWAN)

CDC 6600

Cinnamon (desktop environment)

Civis Romanus sum

Code Red (computer worm)

CoffeeScript

Capsa (software)

Comac C919

Container Linux

Coreboot

CoRoT-1

COVID-19 drug repurposing research

CP System

Norinco CQ

Crossref

Center for the Study of Extraterrestrial Intelligence

CSM Volei Alba Blaj

Boeing Starliner

Cốc Cốc

Das U-Boot

DBNPA

D. B. Cooper

DDG(X)