C4ISR Journal (C4ISR, or C4ISR: The Journal of Net-Centric Warfare) is a monthly publication covering emerging issues and trends in global military transformation and network centric warfare technologies, products and services for federal government managers, defense, and industry.

C4ISR was established in 2002. The magazine is published by the Defense News Media Group, a unit of the Army Times Publishing Company, which was a part of Gannett Company (NYSE:GCI) and is now owned by Regent Companies. The headquarters is in Springfield, Virginia.