Killing is the ending of life, see kill and death. This may be a result of several actions:

• a deliberate action such as war
• in the case of animals; slaughter, see slaughterhouse
• the result of a criminal act, see murder
• the result of a car crash or other accident

Killing may also be:

• Wilhelm Killing, a German mathematician.
• The Killing, a movie by Stanley Kubrick.