A canton is a territorial subdivision of a country, e.g. region or state. The following cantons exist:
- Cantons of Switzerland: each a state (national) within Switzerland
- Cantons of France: a subdivision of arrondissements and departments of France, grouping several municipalities (communes)
- Cantons of Luxembourg: a subdivision of the districts of Luxembourg
- Cantons of Bosnia: a subdivision of the Federation of Bosnia and Herzegovina