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

Heard Island and McDonald Islands
the laws of Australia, where
applicable, apply

Holy See (Vatican City)
based on Code of Canon Law and revisions to
it

Honduras
rooted in Roman and Spanish civil law with increasing
influence of English common law; recent judicial reforms include
abandoning Napoleonic legal codes in favor of the oral adversarial
system; accepts ICJ jurisdiction, with reservations

Hong Kong
based on English common law

Howland Island
the laws of the US, where applicable, apply

Hungary
rule of law based on Western model; accepts compulsory ICJ
jurisdiction, with reservations

Iceland
civil law system based on Danish law; has not accepted
compulsory ICJ jurisdiction

Iles Eparses
the laws of France, where applicable, apply