Ehsan Yarshater (Persian: احسان يارشاطر; April 3, 1920 – September 1, 2018)[2] was an Iranian historian and linguist who specialized in Iranology.

Born in Hamedan, Iran, Ehsan Yarshater studied Persian language and literature at the University of Tehran and Iranian philology (Old and Middle Iranian) at the School of Oriental and African Studies (SOAS), University of London with Walter Bruno Henning.

His Tehran University dissertation dealt with Persian poetry under the Timurid Shahrukh (15th century).

[7] His University of London dissertation, elaborated and published later as A Grammar of Southern Tati Dialects (Mouton, 1969), describes a series of Tati dialects spoken in the southwest of Qazvin.

He had published a number of articles on modern western Iranian dialects, notably Tati and Taleshi, and the Jewish dialects of Persian (including Lotara'i), and on Persian mythology.