Utility is a measure of the happiness or satisfaction gained from a good or service in economics and game theory.

Utility or Utilities may also refer to:

In computers Utility, a software program for a limited narrow specific task: see Utility software Software tool utility (C++), a header file in the C++ Standard Library

In economics Cardinal utility, a utility index that preserves preference orderings Marginal utility, the change in the utility from an increase in the consumption of a good or service

In philosophy Utilitarianism, philosophical theories that deal with utility

Other uses Public utility, an organization that maintains the infrastructure for a public service, or the services themselves Utilities (film), a 1981 movie starring Robert Hays Utility (patentability requirement), one of the requirements for patentability in Canadian and United States patent laws Utility (car), a term used in Australia and New Zealand to refer to a pickup truck or coupe utility vehicle ("ute") Utility player, a term used in sports for a player who can play several positions competently. Utility furniture, produced in the United Kingdom during and just after World War II, under a Government scheme designed to cope with shortages of raw materials and rationing Marine Corps Combat Utility Uniform, often abbreviated to "Utilities", the battledress uniform of the United States Marine Corps Utility Trailer Manufacturing Company, an American semi-trailer and refrigerated and dry trailer manufacturer, often shortened to Utility Utility Manufacturing Company, a defunct clock and camera manufacturer

See also Application (disambiguation)