The Ministry of Home Affairs (Malay: Kementerian Dalam Negeri; Jawi: كمنترين دالم نڬري‎), abbreviated KDN, MOHA, is a ministry of the Government of Malaysia that is responsible for home affairs: law enforcement, public security, public order, population registry, immigration, foreign workers, management of societies, anti-drug, publication / printing / distribution of printed materials, film control, management of volunteer, rehabilitation and implementation of punishment.

The Minister of Home Affairs administers his functions through the Ministry of Home Affairs and a range of other government agencies.

The current Minister of Home Affairs is Saifuddin Nasution Ismail, whose term began on 3 December 2022.

The Ministry of Home Affairs is responsible for administration of several key Acts: The functions of the ministry can be categorised into the following 12 key areas: The Federal Constitution allows Parliament to make laws related to internal security that include: