Abd al Ḥosayn Ayati (1871—1953) was a Baha'i missionary, journalist, author and teacher. After conversion to the Baha'i Faith, he spent 18 years as missionary and was a close companion of `Abdu'l-Bahá, who conferred on him the titles of "Raʾīs-al-moballeḡīn" (Chief of Missionaries) and "Avarih" (Wanderer).