Abu Bakr ibn Ali () was reportedly the son of Ali ibn Abi Talib and Layla bint Mas'ud. He was among companions of Husayn who was martyred at the Battle of Karbala. His first name was Abdullah.
Abu Bakr ibn Ali was martyred during the Battle of Karbala. He was the son of Ali ibn Abu Talib. His martyrdom is commemorated during the month of Muharram.
Historical accounts vary regarding the details of his death. Some sources attribute his martyrdom to a member of the Hamdan tribe, as mentioned in a hadith attributed to Muhammad al-Baqir. Other accounts suggest his body was found in a creek, leaving uncertainty about the circumstances and the perpetrator. His grave is believed to be among those of the Hashimid martyrs at the Holy Shrine of Imam al-Husayn in Karbala.
Abu Bakr ibn Ali is mentioned in the ziyarat (visitation) of Imam al-Husayn, reflecting his honored status among Shia Muslims for his role during the tragic events at Karbala.
Abu Bakr ibn Ali was martyred at the Battle of Karbala. There is a hadith from Muhammad al-Baqir according to which a man from the Hamdan tribe martyred him. However, some scholars hold that Abu Bakr's corpse was found in a creek, and so it is not known who martyred him. According to some sources, his grave is located in the mass grave of Hashimid martyrs in the Holy Shrine of Imam al-Husayn near his burial place.
Abu Bakr ibn Ali is mentioned in one of Imam al-Husayn ziyarat.