Abdülhamid I (Ottoman Turkish: عبد الحميد اول `Abdü’l-ḤamÄ«d-i evvel) (March 20, 1725 – April 7, 1789), was the 27th Sultan of the Ottoman Empire. He was the son of sultan Ahmed III (1703–30) and succeeded his brother Mustafa III (1757–74) on January 21, 1774.