# Operation

Operation or Operations may refer to:

## Arts, entertainment and media

* Operation (game), a battery-operated board game that challenges dexterity
* Operation (music), a term used in musical set theory
* Operations (magazine), Multi-Man Publishing's house organ for articles and discussion about its wargaming products
* The Operation (film), a 1973 British television film
* The Operation (1990), a crime, drama, TV movie starring Joe Penny, Lisa Hartman, and Jason Beghe
* The Operation M.D., formerly The Operation, a Canadian garage rock band
* "Operation", a song by Relient K from The Creepy EP, 2001

### Television
#### Episodes

* "The Operation", Sky Dancers episode 27 (1996)
* "The Operation", The Golden Girls season 1, episode 18 (1986)
* "The Operation", You're Only Young Twice (1997) series 2, episode 8 (1978)

#### Shows

* The Operation (1992–1998), a reality television series from TLC

## Business

* Manufacturing operations, operation of a facility
* Operations management, an area of management concerned with designing and controlling the process of production

## Military and law enforcement

* Military operation, a military action (usually in a military campaign) using deployed forces
** Black operation, or "Black op", an operation that may be outside of standard military protocol or against the law
** Clandestine operation, an intelligence or military operation carried out so that the operation goes unnoticed
** Combined operations, operations by forces of two or more allied nations
** Covert operation, an operation which conceals the identity of the sponsor
** Psychological operations, an operation consisting of psychological manipulations, tactics, and warfare
** Special operations, military operations that are unconventional
* Operations (J3), third level of Nation Level Command Structure
* Operations (military staff), staff involved in planning operations
* Sting operation, an operation designed to catch a person committing a crime, by means of deception

## Science and technology

* Inference, a step in reasoning
* Information technology operations
* Operation (mathematics), a calculation from zero or more input values (called operands) to an output value
** Arity, number of arguments or operands that the function takes
** Binary operation, calculation that combines two elements of the set to produce another element of the set
** Graph operations, produce new graphs from initial ones
** Modulo operation, operation finds the remainder after division of one number by another
** Operations research, in British usage, application of advanced analytical methods to make better decisions
** Unary operation, an operation with only one operand
* Rail transport operations, the control of a rail system
* Scientific operation
* Surgical operation, or surgery, in medicine
* Unit operation, a basic step in a chemical engineering process

## Other uses

* Anomalous operation, in parapsychology, a term describing a broad category of purported paranormal effects
* Operation, a word which represents a grammatical relation (i.e., function) or instruction, rather than a term or name
* Operation of law, a legal term that indicates that a right or liability has been created for a party