word | | Legal system |
| customary | Papua New Guinea | mixed legal system of English common law and customary law |
| customary | Philippines | mixed legal system of civil, common, Islamic, and customary law |
| customary | Rwanda | mixed legal system of civil law, based on German and Belgian models, and customary law; judicial review of legislative acts in the Supreme Court |
| customary | Samoa | mixed legal system of English common law and customary law; judicial review of legislative acts with respect to fundamental rights of the citizen |
| customary | Sao Tome and Principe | mixed legal system of civil law base on the Portuguese model and customary law |
| customary | Saudi Arabia | Islamic (sharia) legal system with some elements of Egyptian, French, and customary law; note - several secular codes have been introduced; commercial disputes handled by special committees |
| customary | Seychelles | mixed legal system of English common law, French civil law, and customary law |
| customary | Sierra Leone | mixed legal system of English common law and customary law |
| customary | Solomon Islands | mixed legal system of English common law and customary law |
| customary | Somalia | mixed legal system of civil law, Islamic law, and customary law (referred to as Xeer) |
| customary | South Africa | mixed legal system of Roman-Dutch civil law, English common law, and customary law |
| customary | Sri Lanka | mixed legal system of Roman-Dutch civil law, English common law, and Jaffna Tamil customary law |
| customary | Swaziland | mixed legal system of civil, common, and customary law |
| customary | Sweden | civil law system influenced by Roman-Germanic law and customary law |
| customary | Togo | customary law system |