thumb|right|Manuscript of Ali ibn al-Hasan Zayn al-Din 'Attar Ansari Shirazi's Ikhtiyarat Badi'i. Copy created in [[Timurid Empire|Timurid Iran, dated 29 July 1444]]
Haji Zayn Attar ( 1329–1403) was a 14th-century Persian physician. He is best known as the author of the Persian language pharmacopoeia Ekhtiyarat i Badi i.
Biography
Attar was born in 1329-1330 CE (730 AH) in Shiraz, and lived during the rule of the Injuids and the Muzaffarids. He was a descendant of the Sufi philosopher Abdullah Ansari. His father Kamal ol Din Hosein Ansari was a well-known physician, and had migrated from Isfahan to Shiraz.
Attar's other works include: