Posted in Engineering, Government & Military, Information Technology, Internet Slang, Organizations, Pop Culture, Science C4S stands for Carrera 4S (Porsche 911 model) C4S stands for Centre for Sustainability (Transport Research Laboratory; UK) C4S stands for Command, Control, Communications, and Computer Systems (US DoD) C4S stands for Chondroitin-4 Sulfate C4S stands for Computers 4 Seniors (Georgia) C4S stands for Camille Cascode Constant Current Source (current limit circuit) C4S stands for Clean for Stripper (band) C4S stands for Command, Control, Communications, Computers, and Surveillance C4S stands for Classified Computer Configuration Control System