A campus network is an exclusive local area network (LAN) or collection of linked LANs used by a business, government body, academic institution, or other comparable establishment. Within this perspective, a typical campus consists of a collection of adjacent buildings. Although end users in a campus network are often not as spread as they would be in a wide area network (WAN), they may be more widely distributed geographically than in a single LAN.

Campus networks at colleges and universities link the administration buildings, housing halls, lecture halls, libraries, student centers, sports facilities, and other structures located in a particular town or area. Key departments and staff personnel are housed in buildings connected by corporate campus networks. Within a constrained geographic area, the corporate campus network serves as the user-facing portion of the wider corporate network.