The Nagae-Sakurayama Kofun cluster (長柄桜山古墳群, Nagae-Sakurayama kofun-gun) is a pair of Kofun period burial mound located on the border of the city of Zushi and town of Hayama, Kanagawa Prefecture in the southern Kantō region of Japan. The pair were designated a National Historic Site in 2002. It is the only known keyhole-shaped tumuli in the Miura Peninsula, and the largest in Kanagawa Prefecture.