The district of Vannes is a district (in French arrondissement) of France, that is located in département Morbihan, of the Britany region (in Bretagne French). Account with 17 corners and 123 communes.
The capital of a department is called subprefecture (sous-préfecture).
When a department contains the prefecture (capital) of the department, that prefecture is the capital of the district, and so much behaves as a prefecture as a subprefecture.