The 485th Engineering Installation Group (485 EIG) was a United States Air Force unit responsible for installing, maintaining, and upgrading communications and information systems infrastructure. Activated in the 1950s, the group played a vital role throughout the Cold War, supporting both stateside and overseas operations with specialized engineering and technical expertise. The 485 EIG was notable for its rapid deployment capability, enabling it to establish critical command and control networks in support of global Air Force missions. The unit was eventually inactivated as part of a broader reorganization of Air Force communications and engineering assets.