Political violence is violence which is perpetrated in order to achieve political goals. It can include violence which is used by a state against other states (war), violence which is used by a state against civilians and non-state actors, and violence which is used by violent non-state actors against states and civilians. It can also describe politically motivated violence which is used by violent non-state actors against a state or it can describe violence which is used against other non-state actors and/or civilians. Non-action on the part of a government can also be characterized as a form of political violence, such as refusing to alleviate famine or otherwise denying resources to politically identifiable groups within their territory.

Violence is the use of physical force to cause harm to people, non-human animals, or property, such as pain, injury, death, damage, or destruction. Some definitions are somewhat broader, such as the World Health Organization's definition of violence as "the intentional use of physical force or power, threatened or actual, against oneself, another person, or against a group or community, which either results in or has a high likelihood of resulting in injury, death, psychological harm, maldevelopment, or deprivation."