word | | Legal system |
| common | Seychelles | based on English common law, French civil law, and customary law; has not accepted compulsory ICJ jurisdiction |
| common | Singapore | based on English common law; has not accepted compulsory ICJ jurisdiction |
| common | Solomon Islands | English common law, which is widely disregarded; has not accepted compulsory ICJ jurisdiction |
| common | Somalia | no national system; a mixture of English common law, Italian law, Islamic Sharia, and Somali customary law; accepts compulsory ICJ jurisdiction with reservations |
| common | South Africa | based on Roman-Dutch law and English common law; has not accepted compulsory ICJ jurisdiction |
| common | Sri Lanka | a highly complex mixture of English common law, Roman-Dutch, Kandyan, and Jaffna Tamil law; has not accepted compulsory ICJ jurisdiction |
| common | Sudan | based on English common law and Islamic law; as of 20 January 1991, the now defunct Revolutionary Command Council imposed Islamic law in the northern states; Islamic law applies to all residents ... |
| common | Tanzania | based on English common law; judicial review of legislative acts limited to matters of interpretation; has not accepted compulsory ICJ jurisdiction |
| common | Thailand | based on civil law system with influences of common law; has not accepted compulsory ICJ jurisdiction |
| common | Tonga | based on English common law; has not accepted compulsory ICJ jurisdiction |
| common | Trinidad and Tobago | based on English common law; judicial review of legislative acts in the Supreme Court; has not accepted compulsory ICJ jurisdiction |
| common | Tuvalu | English common law supplemented by local customary law |
| common | Uganda | in 1995, the government restored the legal system to one based on English common law and customary law; accepts compulsory ICJ jurisdiction with reservations |