Nioro Cercle yanki ne na gudanarwa na yankin Kayes na Ƙasar Mali . Cibiyar gudanarwa ta ( shuga-lieu ) ita ce garin Nioro du Sahel . Tashar tana kan iyakar Mauritaniya kuma ta dade da zama wata babbar tashar kasuwanci a tsakanin sahara . An kasu kashi-kashi 16 :  .