The chapter situates the class of institutions variously referred to as internationalized, hybrid, mixed or special tribunals in the system of international criminal justice and highlights their main rationales and features. It addresses the known strengths and weaknesses of the hybrid institutional model as compared to purely international criminal jurisdictions. Using the classification based on these courts’ legal nature as defined by the primary basis for their establishment and functioning, the chapter surveys the main hybrid courts (including some which are yet to be established), including but not limited to the Special Court for Sierra Leone, Special Tribunal for Lebanon, Extraordinary African Chambers, the African Criminal Court, the UNTAET and UNMIK Special Panels (in East Timor and in Kosovo, respectively), the Kosovo Specialist Chambers, and the Special Criminal Court in the Central African Republic. It outlines the factual background to these courts’ emergence and addresses their subject-matter jurisdiction and applicable law, institutional and procedural features, and noteworthy contributions to international criminal jurisprudence. This overview is followed by the discussion of the issues raised by the hybrid courts’ (potential) relationship with the ICC and reflections on their achievements, deficiencies, and (the prospects of) wider impact.