Abu'l-'Anbas Saymari Mohammad bin Eshaq bin Abi'l-'Anbas bin Al-Maghira bin Mahan (; ) was an Iranian astrologer, astronomer, poet and author. He was born in 213/828 in Kufa, and died in 275/889. He seems to have spent much of his time at the caliphal court from Motawakkel's reign (847861) to Moÿtamed's (870892). His great-great-grandfather's name, and his knowledge of the Sasanian astrologers Zaradà «à ¡t and Bozorjmehr, indicates that he was of Iranian origin.