Abu Ismaïl Abdullah al-Herawi al-Ansari or Khajah Abdullah Ansari of Herat (1006–1088) also known as Pir-i Herat (Persian: sage of Herat) is a famous Persian Sufi who lives in the 11th century in Herat (at this time Khorasan, now Herat province, Afghanistan).

One of the outstanding figures in Khorasan in the 11th century: a commentator of the Koran, traditionist, polemicist, and spiritual master, known for his oratory and poetic talents in Arabic and Persian.