Ama-no-Koyane-no-mikoto (天児屋命, 天児屋根命) is a kami, a male deity of the Japanese religion of Shinto. He is one of the deities of Kasuga Shrine, Nara, Japan.
He is considered to be an ancestor of the Nakatomi clan and, hence, its most famous branch - the Fujiwara clan.
References
Ame-no-Koyane Wikipedia(Text) CC BY-SA