Dismemberment is the act of cutting, ripping, tearing, pulling, wrenching or otherwise disconnecting the limbs from a living or dead being. It has been practiced upon human beings as a form of capital punishment, especially in connection with regicide, but can occur as a result of a traumatic accident, or in connection with murder, suicide, or cannibalism. As opposed to surgical amputation of the limbs, dismemberment is often fatal. In criminology, a distinction is made between offensive dismemberment, in which dismemberment is the primary objective of the dismemberer, and defensive dismemberment, in which the motivation is to destroy evidence.

In 2019, Michael H. Stone, Gary Brucato and Ann Burgess proposed formal criteria by which "dismemberment" might be systematically distinguished from the act of "mutilation", as these terms are commonly used interchangeably. They suggested that dismemberment involves "the entire removal, by any means, of a large section of the body of a living or dead person, specifically, the head (also termed decapitation), arms, hands, torso, pelvic area, legs, or feet". Mutilation, by contrast, involves "the removal or irreparable disfigurement, by any means, of some smaller portion of one of those larger sections of a living or dead person. The latter would include castration (removal of the testes), evisceration (removal of the internal organs), and flaying (removal of the skin)." According to these parameters, removing a whole hand would constitute dismemberment, while removing or damaging a finger would be mutilation; decapitation of a full head would be dismemberment, while removing or damaging a part of the face would be mutilation; and removing a whole torso would be dismemberment, while removing or damaging a breast or the organs contained within the torso would be mutilation.