MAN may refer to any of the following:
1. Short for metropolitan area network, MAN is a network that is utilized across multiple buildings. A MAN is much larger than the standard LAN local area network), but is not as large as a WAN (wide area network). A MAN is commonly used in school campuses and large companies with multiple buildings.
2. Short for Manual, man is a Unix and Linux command to display the manual of a command. For example, at the Linux prompt typing "man ls" would display the manual for the ls command.