Mohammad-Amin Riahi (Persian: محمدامین ریاحی‎; 1 June 1923, Khoy – 15 May 2009, Tehran) was a prominent Iranian literary scholar of Persian literature, a historian, writer and statesman. Apart from being one of the authors of Dehkhoda Dictionary and Encyclopædia Iranica, he was the author and editor of several well-known scholarly books. Mohammad-Amin Riahi received his PHD on Persian literature from Tehran Universityunder the supervision of Badiozzaman Forouzanfar. Riahi is best known for his scholarly works on Shahnameh and Ferdowsi, Hafiz, and the ancient iranian languages (especially Azari Language). He has produced critical editions of some of the major classical Persian texts such as Mersad-al-ebad and Nozhat-al-majalis. During a course of 60 years he published numerous scholarly art