The Ministry of Islamic Affairs, Dawah, and Guidance (Arabic: وزارة الشؤون الإسلامية والدعوة والإرشاد), at times shortened to Ministry of Islamic Affairs (MOIA), is a government ministry in Saudi Arabia that is responsible for overseeing affairs pertaining to Islam as well as maintaining and regulating all mosques across the country.

[1] Established in 1993, it also supervises the King Fahd Complex for the Printing of the Holy Qur'an in Medina.

[2] The ministry's responsibilities include increasing the awareness of the good practice of Islam.

[5] In 2019, the ministry implemented a project in 35 countries that aims at promoting the values of moderation and tolerance.

This project includes delivering speeches, organizing scientific events and giving training courses.