CCCP stands for Combined Community Codec Pack. CCCP is a video codec that was designed for the playback of anime fansubs in Microsoft Windows.

CCCP stands for many things. It used to be the Russian spelling of USSR, the Soviet Union. It can also stand for: Carbonyl Cyanide 3-ChloroPhenylhydrazone; Caltech Core Collapse Project; Conference Control Channel Protocol; Camera Corner / Connecting Point; Canadian Cultural Conservation Program; Center for Community College Partnerships; Canadian College of Clinical Pharmacy. Believe it or not, there are more, but those are the main uses.