| Country | Legal system |
| Kazakhstan | civil law system influenced by Roman-Germanic law and by the theory and practice of the Russian Federation |
| Kenya | mixed legal system of English common law, Islamic law, and customary law; judicial review in High Court |
| Kiribati | English common law supplemented by customary law |
| Korea, North | civil law system based on the Prussian model; system influenced by Japanese traditions and Communist legal theory |
| Korea, South | mixed legal system combining European civil law, Anglo-American law, and Chinese classical thought |
| Kosovo | evolving legal system; mixture of applicable Kosovo law, UNMIK laws and regulations, and applicable laws of the Former Socialist Republic of Yugoslavia that were in effect in Kosovo as of 22 March 1989 |
| Kuwait | mixed legal system consisting of English common law, French civil law, and Islamic religious law |
| Kyrgyzstan | civil law system which includes features of French civil law and Russian Federation laws |
| Laos | civil law system similar in form to the French system |
| Latvia | civil law system with traces of socialist legal traditions and practices |
| Lebanon | mixed legal system of civil law based on the French civil code and religious laws covering personal status, marriage, divorce, and other family relations of the Jewish, Islamic, and Christian communities |
| Lesotho | mixed legal system of English common law and Roman-Dutch law; judicial review of legislative acts in High Court and Court of Appeal |
| Liberia | mixed legal system of common law (based on Anglo-American law) and customary law |
| Libya | NA |
| Liechtenstein | civil law system influenced by Swiss, Austrian, and German law |
| Lithuania | civil law system; legislative acts can be appealed to the constitutional court |
| Luxembourg | civil law system |
| Macau | civil law system based on the Portuguese model |
| Macedonia | civil law system; judicial review of legislative acts |