Rav Sherira Gaon (Hebrew: רב שרירא גאון or R. Sherira Gaon bar Ḥanina , Hebrew: רב שרירא גאון בר חנינא or merely Sherira b. Ḥanina) was the head (gaon) of the Academy of Pumbeditha. He was one of the most prominent Geonim of his period, and the father of Hai Gaon, who succeeded him as gaon.