In international human rights law, a forced disappearance (or enforced disappearance) occurs when a person is secretly abducted or imprisoned by a state or political organization or by a third party with the authorization, support, or acquiescence of a state or political organization, followed by a refusal to acknowledge the person's fate and whereabouts, with the intent of placing the victim outside the protection of the law.^[1]

According to the Rome Statute of the International Criminal Court, which came into force on 1 July 2002, when committed as part of a widespread or systematic attack directed at any civilian population, a "forced disappearance" qualifies as a crime against humanity and, thus, is not subject to a statute of limitations. On 20 December 2006, the United Nations General Assembly adopted the International Convention for the Protection of All Persons from Enforced Disappearance.

Often forced disappearance implies murder. The victim in such a case is first abducted, then illegally detained, and often tortured; the victim is then killed and the body hidden. Typically, a murder will be surreptitious, with the corpse disposed of in such a way as to prevent it ever being found, so that the person apparently vanishes. The party committing the murder has deniability, as there is no body to prove that the victim has actually died.