Arrondissements of the Morbihan department

The three arrondissements of the Morbihan department are:[1] In 1800 the arrondissements of Vannes, Lorient, Ploërmel and Pontivy were established.

The arrondissement of Ploërmel was disbanded in 1926.

[2] The borders of the arrondissements of Morbihan were modified in January 2017:[3]