| Country | Legal system |
| Czech Republic | civil law system based on Austro-Hungarian codes; legal code modified to bring it in line with Organization on Security and Cooperation in Europe (OSCE) obligations and to expunge Marxist-Leninist legal theory |
| Denmark | civil law system; judicial review of legislative acts; accepts compulsory ICJ jurisdiction with reservations |
| 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 | based on French civil law system, traditional practices, and Islamic law; accepts ICJ jurisdiction with reservations |
| Dominica | based on English common law; accepts ICJ jurisdiction |
| Dominican Republic | based on French civil codes; Criminal Procedures Code modified in 2004 to include important elements of an accusatory system; accepts compulsory ICJ jurisdiction |
| Ecuador | based on civil law system; has not accepted compulsory ICJ jurisdiction |
| Egypt | based on Islamic and civil law (particularly Napoleonic codes); judicial review by Supreme Court and Council of State (oversees validity of administrative decisions); accepts compulsory ICJ jurisdiction with reservations |
| El Salvador | based on civil and Roman law with traces of common law; judicial review of legislative acts in the Supreme Court; has not accepted compulsory ICJ jurisdiction |
| Equatorial Guinea | partly based on Spanish civil law and tribal custom; has not accepted compulsory ICJ jurisdiction |
| Eritrea | primary basis is the Ethiopian legal code of 1957 with revisions; new civil, commercial, and penal codes have not yet been promulgated; government also issues unilateral proclamations setting laws and policies; also relies on customary and post-independence-enacted laws and, for civil cases involving Muslims, Islamic law; does not accept compulsory ICJ jurisdiction |
| Estonia | based on civil law system; accepts compulsory ICJ jurisdiction with reservations |