The arrondissement of Semur-en-Auxois was created in 1800. The subprefecture was moved to Montbard in 1926.[4]
As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements. The cantons of the arrondissement of Montbard were, as of January 2015:[5]