Overhead may be: Overhead (business), the ongoing operating costs of running a business Engineering overhead, ancillary design features required by a component of a device Overhead (computing), ancillary computation required by an algorithm or program Protocol overhead, additional bandwidth used by a communications protocol Line code or encoding overhead, additional bandwidth required for physical line transmission Overhead information, for telecommunication systems File system overhead, storage or other consideration required by a file system that is not directly related to data Any physical object situated, or action occurring above: Overhead line, for power transmission Overhead cable, for signal transmission Overhead projector, a display system Overhead cam, a mechanical device Overhead join, in air traffic control Overhead press, an upper-body weight training exercise in Overhead crane or bridge crane, a type of crane sliding on two parallel rails See also Overkill (disambiguation)