Aun ibn Ja'far (Arabic: عون بن جعفر بن أبي طالب) was a companion and relative of the Islamic prophet Muhammad.
He was born in Abyssinia, the third son of Ja'far ibn Abu Talib and Asma bint Umais. The family returned to Medina in 628.
He married his cousin, Umm Kulthum bint Ali, who was a granddaughter of Muhammad. They had no children.
- ^ Muhammad ibn Saad. Kitab al-Tabaqat al-Kabir, vol. 8. Translated by Bewley, A. (1995). The Women of Madina, p. 196. London: Ta-Ha Publishers.
- ^ Ibn Saad/Bewley p. 299.