| Country | Legal system |
| Czech Republic | civil law system based on former Austro-Hungarian civil codes and socialist theory; note - legislation is actively modernizing the legal system |
| Denmark | civil law; judicial review of legislative acts |
| Dhekelia | the Sovereign Base Area Administration has its own court system to deal with civil and criminal matters; laws applicable to the Cypriot population are, as far as possible, the same as the laws of the Republic of Cyprus |
| Djibouti | mixed legal system based primarily on the French civil code (as it existed in 1997) and Islamic religious law (in matters of family law and successions), and customary law |
| Dominica | common law based on the English model |
| Dominican Republic | civil law system based on the French civil code; Criminal Procedures Code modified in 2004 to include important elements of an accusatory system |
| Ecuador | civil law based on the Chilean civil code with modifications |
| Egypt | mixed legal system based on Napoleonic civil law and Islamic religious law; judicial review by Supreme Court and Council of State (oversees validity of administrative decisions) |
| El Salvador | civil law system with minor common law influence; judicial review of legislative acts in the Supreme Court |
| Equatorial Guinea | mixed system of civil and customary law |
| Eritrea | mixed legal system of civil, customary, and Islamic religious law |
| Estonia | civil law system |
| Ethiopia | civil law system |
| European Union | unique supranational law system in which, according to an interpretive declaration of member-state governments appended to the Treaty of Lisbon, "the Treaties and the law adopted by the Union on the basis of the Treaties have primacy over the law of Member States" under conditions laid down in the case law of the Court of Justice; key principles of EU law include fundamental rights as guaranteed by the European Convention for the Protection of Human Rights and Fundamental Freedoms and as resulting from constitutional traditions common to the EU's states |
| Falkland Islands (Islas Malvinas) | English common law and local statutes |
| Faroe Islands | the laws of Denmark, where applicable, apply |