C4ISR may refer to:
the C4ISR concept of Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance, the U.S. term for C4ISTAR C4ISRNET, a trade publication from Sightline Media Group the C4ISR architectural framework (C4ISR AF), now known as Department of Defense Architecture Framework (DoDAF)
See also Command and control RSTA STA sniper (USMC) Surveillance and Target Acquisition Artillery STA ISTAR Military intelligence Information warfare Programs include Command Post of the Future (CPOF), C2PC, FBCB2, and MCS Battlefield management system
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