Mírzá Asadu'lláh Fádil Mázandarání (1881–1957)[1] was a prominent Baháʼí scholar in Iran.

He travelled to Iraq, India and North America at the request of ʻAbdu'l-Bahá and Shoghi Effendi (the second and third leaders of the Baháʼí Faith), to spread the Baháʼí teachings.

[1] He wrote the Zuhúru'l-Haqq (History of the Manifestation of Truth), a nine volume history of the Bábí and Baháʼí religions and the Asráru'l-áthár (1932-1943),.

[3] a five volume Bábí-Baháʼí dictionary (1967-1972).

He has also published a four volume collection called Amr wa khalq, containing selections from the Bahá'í writings related to philosophical, theological, religious, and administrative matters (1954-1974).