word | | Legal system |
| civil | Senegal | civil law system based on French law; judicial review of legislative acts in Constitutional Court |
| civil | Serbia | civil law system |
| civil | Seychelles | mixed legal system of English common law, French civil law, and customary law |
| civil | Sint Maarten | based on Dutch civil law system with some English common law influence |
| civil | Slovakia | civil law system based on Austro-Hungarian codes; note - legal code modified to comply with the obligations of Organization on Security and Cooperation in Europe and to expunge Marxist-Leninist legal system |
| civil | Slovenia | civil law system |
| civil | Somalia | mixed legal system of civil law, Islamic law, and customary law (referred to as Xeer) |
| civil | South Africa | mixed legal system of Roman-Dutch civil law, English common law, and customary law |
| civil | Spain | civil law system with regional variations |
| civil | Sri Lanka | mixed legal system of Roman-Dutch civil law, English common law, and Jaffna Tamil customary law |
| civil | Suriname | civil law system influenced by Dutch civil law; note - the Commissie Nieuw Surinaamse Burgerlijk Wetboek completed drafting a new civil code in February 2009 |
| civil | Swaziland | mixed legal system of civil, common, and customary law |
| civil | Sweden | civil law system influenced by Roman-Germanic law and customary law |
| civil | Switzerland | civil law system; judicial review of legislative acts, except for federal decrees of a general obligatory character |
| civil | Syria | mixed legal system of civil and Islamic law (for family courts) |