Abū-Saʿīd Hasan ibn Bahrām Jannābī (Arabic: ابوسعید حسن بن بهرام جنّابی) was the founder of the Qarmatian state in Bahrain and Ahsā, in the late 9th century CE. He was a Persian from Jannāba (Ganaveh, currently in Bushehr province)[1]. The exact date of his birth is not known. He was born between 230 AH/845 CE, and 240 AH/855 and died in 300/913 or 301/913-14[2].