| Agency Name: | Islamic Republic of Mauritania Ministry of Interior and Decentralization |
| Nativename: | وزارة الداخلية والامركزية |
| Nativename R: | Ministère de l'Intérieur et de la décentralisation |
| Jurisdiction: | Government of Mauritania |
| Headquarters: | Nouakchott  |
| Chief1 Name: | Mohamed Ahmed Ould Mohamed Lemine |
| Chief1 Position: | (Minister) |
| Website: | https://www.interieur.gov.mr/fr |
The Ministry of the Interior and Decentralization is the national Ministry of the Interior of Mauritania. Its headquarters are located in Nouakchott, just south-east of the Presidential Palace, between the Chamber of Commerce and the College of Science and Technology.
Since March 31, 2022, the Minister of the Interior and Decentralization is Mohamed Ahmed Ould Mohamed Lemine.[1]