Despite the clear prohibition of rape by international law, no conventional or other international instrument defines this international crime or explains its relation to the international crime of genocide. This article reviews the recent precedent-setting judgments of the international criminal tribunals for the Former Yugoslavia and Rwanda which have sought to define rape in international law using different approaches. It also analyses the recent Akayesu Judgment of the Rwanda Tribunal. This is the first decision of an international tribunal to consider the question of whether rape can constitute genocide.