C4ISR may refer to:

• the C⁴ISR concept of Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance, the U.S. term for C⁴ISTAR
• C⁴ISR Journal, a journal published by the Defense News Media Group
• the C4ISR architectural framework (C4ISR AF), now known as Department of Defense Architecture Framework (DoDAF)

• 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
• Battle Management System

Topics referred to by the same term

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