The Ministry of Interior is a governmental body in Saudi Arabia established in 1926 by King Abdulaziz, primarily responsible for national security, naturalization, immigration, and ensuring the safety and stability of citizens and residents. In 1951, it underwent significant reform when it separated from the combined ministerial body that oversaw financial and interior affairs. Over the years, the MOI has evolved through various phases of administrative development and organizational restructuring.

The Ministry of Interior’s core mission includes safeguarding Saudi society by combating crime in all its forms, ensuring the security of pilgrims during their rituals, and maintaining strong security relations with neighboring Arab countries and the Gulf Cooperation Council (GCC). It plays a crucial role in controlling crime, drug trafficking, and terrorism, exchanging security information.

The ministry also collaborates regionally to protect cultural assets and bolster internal and external security measures, supporting the development of Arab security institutions.