Cap-Haïtien (Haitian Creole: Kap Ayisyen) is an arrondissement in the Nord department of Haiti and is the second-most important city of the country.

It is known as the historical and tourism capital of the country.

Cap-Haïtien was founded in 1670 by the French settler Bertrand d'Ogeron de La Bouëre.

[1] The city is governed by three mayors elected by popular vote every 5 years and also represented in the National Assembly of Haiti with one member elected every 4 years.

Postal codes in Cap-Haïtien Arrondissement start with the number 11.