| Country | Legal system |
| 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 |
| Ethiopia | based on civil law; currently transitional mix of national and regional courts; has not accepted compulsory ICJ jurisdiction |
| European Union | comparable to the legal systems of member states; first supranational law system |
| Falkland Islands (Islas Malvinas) | English common law |
| Faroe Islands | the laws of Denmark, where applicable, apply |
| Fiji | based on British system; has not accepted compulsory ICJ jurisdiction |
| Finland | civil law system based on Swedish law; the president may request the Supreme Court to review laws; accepts compulsory ICJ jurisdiction with reservations |
| France | civil law system with indigenous concepts; review of administrative but not legislative acts; has not accepted compulsory ICJ jurisdiction |
| French Polynesia | the laws of France, where applicable, apply |
| French Southern and Antarctic Lands | the laws of France, where applicable, apply |
| Gabon | based on French civil law system and customary law; judicial review of legislative acts in Constitutional Chamber of the Supreme Court; has not accepted compulsory ICJ jurisdiction |
| Gambia, The | based on a composite of English common law, Islamic law, and customary law; accepts compulsory ICJ jurisdiction with reservations |
| Gaza Strip | void |
| Georgia | based on civil law system; accepts compulsory ICJ jurisdiction |
| Germany | civil law system with indigenous concepts; judicial review of legislative acts in the Federal Constitutional Court; has not accepted compulsory ICJ jurisdiction |
| Ghana | based on English common law and customary law; has not accepted compulsory ICJ jurisdiction |
| Gibraltar | the laws of the UK, where applicable, apply |
| Greece | based on codified Roman law; judiciary divided into civil, criminal, and administrative courts; accepts compulsory ICJ jurisdiction with reservations |
| Greenland | the laws of Denmark, where applicable, apply |
| Grenada | based on English common law; has not accepted compulsory ICJ jurisdiction |
| Guam | modeled on US; US federal laws apply |
| Guatemala | civil law system; judicial review of legislative acts; has not accepted compulsory ICJ jurisdiction |
| Guernsey | the laws of the UK, where applicable, apply; justice is administered by the Royal Court |
| Guinea | based on French civil law system, customary law, and decree; accepts compulsory ICJ jurisdiction with reservations |
| Guinea-Bissau | based on French civil law; accepts compulsory ICJ jurisdiction |
| Guyana | based on English common law with certain admixtures of Roman-Dutch law; has not accepted compulsory ICJ jurisdiction |
| Haiti | based on Roman civil law system; accepts compulsory ICJ jurisdiction |