| Country | Judicial branch |
| Saint Martin | void |
| Saint Pierre and Miquelon | Superior Tribunal of Appeals or Tribunal Superieur d'Appel |
| Saint Vincent and the Grenadines | Eastern Caribbean Supreme Court (based on Saint Lucia; one judge of the Supreme Court resides in Saint Vincent and the Grenadines) |
| Samoa | Court of Appeal; Supreme Court; District Court; Land and Titles Court |
| San Marino | Council of Twelve or Consiglio dei XII |
| Sao Tome and Principe | Supreme Court (judges are appointed by the National Assembly) |
| Saudi Arabia | Supreme Council of Justice |
| Senegal | Constitutional Court; Council of State; Court of Final Appeals or Cour de Cassation; Court of Appeals |
| Serbia | Constitutional Court, Supreme Court (to become court of cassation under new constitution), appellate courts, district courts, municipal courts |
| Seychelles | Court of Appeal; Supreme Court; judges for both courts are appointed by the president |
| Sierra Leone | Supreme Court; Appeals Court; High Court |
| Singapore | Supreme Court (chief justice is appointed by the president with the advice of the prime minister, other judges are appointed by the president with the advice of the chief justice); Court of Appeals |
| Slovakia | Supreme Court (judges are elected by the National Council); Constitutional Court (judges appointed by president from group of nominees approved by the National Council); Special Court (judges elected by a council of judges and appointed by president) |
| Slovenia | Supreme Court (judges are elected by the National Assembly on the recommendation of the Judicial Council); Constitutional Court (judges elected for nine-year terms by the National Assembly and nominated by the president) |
| Solomon Islands | Court of Appeal |
| Somalia | following the breakdown of the central government, most regions have reverted to local forms of conflict resolution, either secular, traditional Somali customary law, or Shari'a (Islamic) law with a provision for appeal of all sentences |
| South Africa | Constitutional Court; Supreme Court of Appeals; High Courts; Magistrate Courts |
| South Georgia and the South Sandwich Islands | void |
| Southern Ocean | void |
| Spain | Supreme Court or Tribunal Supremo |
| Spratly Islands | void |
| Sri Lanka | Supreme Court; Court of Appeals; judges for both courts are appointed by the president |
| Sudan | Constitutional Court of nine justices; National Supreme Court; National Courts of Appeal; other national courts; National Judicial Service Commission will undertake overall management of the National Judiciary |
| Suriname | Cantonal Courts and a Court of Justice as an appellate court (justices are nominated for life) |
| Svalbard | void |
| Swaziland | High Court; Supreme Court; judges for both courts are appointed by the monarch |
| Sweden | Supreme Court or Hogsta Domstolen (judges are appointed by the prime minister and the cabinet) |
| Switzerland | Federal Supreme Court (judges elected for six-year terms by the Federal Assembly) |
| Syria | Supreme Judicial Council (appoints and dismisses judges; headed by the President); national level - Supreme Constitutional Court (adjudicates electoral disputes and rules on constitutionality of laws and decrees; justices appointed for four-year terms by the President); Court of Cassation; Appeals Courts (Appeals Courts represent an intermediate level between the Court of Cassation and local level courts); local level - Magistrate Courts; Courts of First Instance; Juvenile Courts; Customs Courts; specialized courts - Economic Security Courts (hear cases related to economic crimes); Supreme State Security Court (hear cases related to national security); Personal Status Courts (religious; hear cases related to marriage and divorce) |
| Taiwan | Judicial Yuan (justices appointed by the president with consent of the Legislative Yuan) |
| Tajikistan | Supreme Court (judges are appointed by the president) |