Aqidah (Arabic: عقيدة, romanized: ʿaqīdah, plural عقائد ʿaqāʾid, also ʿaqīda, aqeeda etc.) is an Islamic term of Arabic origin. It means creed (Arabic pronunciation: [ʕɑˈqiːdæ, ʕɑˈqɑːʔɪd]).
Different Islamic theologians have different views on aqidah. The term has a significant technical usage in Islamic theology: it means those matters over which Muslims hold conviction. It is a branch of Islamic studies describing the beliefs of Islam.