| Abu'l-Abbas Ismail | |
| Native Name: | Persian: ابوالقاسم عباس اسماعیل |
| Office1: | Head of Chancery |
| Term Start1: | 958 |
| Term End1: | 973 |
| Successor1: | Abu Muhammad Abd-Allah |
| Birth Place: | Khorasan, Samanid Empire (present-day Iran) |
| Death Date: | 973 CE |
| Father: | Abd-Allah Mikali |
| Children: | 3+, including Abu Muhammad, Abu Ja'far, and Abu'l-Qasim |
| Relatives: | Mikalid family |
Abu'l-Abbas Ismail (Persian: ابوالقاسم عباس اسماعیل; died 973 CE), was an Iranian statesman from the Mikalid family, who served the Abbasids, and later the Samanids.
He was the son of Abd-Allah Mikali, a powerful magnate of the Saffarids, and later the governor of Ahvaz under the Abbasids. When Abu'l-Abbas became old enough, he also began serving the Abbasids and later became the patron of his tutor, the poet Ibn Duraid. Abu'l-Abbas later moved to Nishapur, in his homeland Khorasan, then under the control of the Iranian Samanids. In 958, he was appointed as the head of chancery by the vizier of the Samanid ruler Abd al-Malik I, Abu Ja'far 'Utbi. Abu'l-Abbas would keep this office until his death in 973.
He had three sons; one named Abu Muhammad Abd-Allah, who would obtain the offices of his father, another one named Abu Ja'far Mikali, and the last one named Abu'l-Qasim Ali, a military officer who fought with the Byzantines and the pagan Turks in their steppes.