Jaʿfar ibn Abī Ṭālib, also known as Jaʿfar aṭ-Ṭayyār, was a companion and cousin of the Islamic prophet Muhammad, and an elder brother of Ali.

Abu Talib ibn Abd al-Muttalib was the leader of Banu Hashim, a clan of the Qurayshi tribe of Mecca in the Hejazi region of the Arabian Peninsula. He being the brother of Abdullah, the father of the Islamic Prophet Muhammad, was his uncle and father of Ali. After the death of his father Abd al-Muttalib ibn Hashim ibn Abd Manaf, he inherited this position as tribal chieftain, and the offices of Siqaya and Rifada. He was well-respected in Mecca.