Arrondissement (/əˈrɒndɪsmənt/; French: [aʁɔ̃dismɑ̃]) is any of various administrative divisions of France, Belgium, Haiti, certain other Francophone countries, and the Netherlands.
The 101 French departments are divided into 342 arrondissements, which may be translated into English as districts. The capital of an arrondissement is called a subprefecture. When an arrondissement contains the prefecture (capital) of the department, that prefecture is the capital of the arrondissement, acting both as a prefecture and as a subprefecture. Arrondissements are further divided into cantons and communes.
A municipal arrondissement (French: arrondissement municipal, pronounced [aʁɔ̃dismɑ̃ mynisipal]), is a subdivision of the commune, used in the three largest cities: Paris, Lyon, and Marseille. It functions as an even lower administrative division, with its own mayor. Although usually referred to simply as an "arrondissement," they should not be confused with departmental arrondissements, which are groupings of communes within one département. The official translation into English is "district".