| Country | Judicial branch |
| Indonesia | Supreme Court or Mahkamah Agung is the final court of appeal but does not have the power of judicial review (justices are appointed by the president from a list of candidates selected by the legislature); in March 2004 the Supreme Court assumed administrative and financial responsibility for the lower court system from the Ministry of Justice and Human Rights; Constitutional Court or Mahkamah Konstitusi (invested by the president on 16 August 2003) has the power of judicial review, jurisdiction over the results of a general election, and reviews actions to dismiss a president from office; Labor Court under supervision of Supreme Court began functioning in January 2006; anti-corruption courts have jurisdiction over corruption cases brought by the independent Corruption Eradication Commission |
| Iran | The Supreme Court (Qeveh Qazaieh) and the four-member High Council of the Judiciary have a single head and overlapping responsibilities; together they supervise the enforcement of all laws and establish judicial and legal policies; lower courts include a special clerical court, a revolutionary court, and a special administrative court |
| Iraq | the Iraq Constitution calls for the federal judicial power to be comprised of the Higher Judicial Council, Federal Supreme Court, Federal Court of Cassation, Public Prosecution Department, Judiciary Oversight Commission and other federal courts that are regulated in accordance with the law |
| Ireland | Supreme Court (Court of Final Appeal) (judges appointed by the president on the advice of the prime minister and cabinet); Courts of First Instance (includes High Court) |
| Isle of Man | High Court of Justice (justices are appointed by the Lord Chancellor of England on the nomination of the lieutenant governor) |
| Israel | Supreme Court (justices appointed by Judicial Selection Committee - made up of all three branches of the government; mandatory retirement age is 70) |
| Italy | Constitutional Court or Corte Costituzionale (composed of 15 judges: one-third appointed by the president, one-third elected by parliament, one-third elected by the ordinary and administrative Supreme Courts); Supreme Court of Cassation or Corte Suprema di Cassazione |
| Jamaica | Supreme Court (judges appointed by the governor general on the advice of the prime minister); Court of Appeal; Privy Council in UK; member of the Caribbean Court of Justice (CCJ) |
| Jan Mayen | void |
| Japan | Supreme Court (chief justice is appointed by the monarch after designation by the cabinet; all other justices are appointed by the cabinet) |
| Jersey | Royal Court (judges elected by an electoral college and the bailiff); Court of Appeal of Jersey |
| Jordan | Court of Cassation (Supreme Court) |
| Kazakhstan | Supreme Court (44 members); Constitutional Council (seven members) |