Oyamada clan

Oyamada clan (小山田氏) is a Japanese samurai family group. It can refer to one of five different Japanese clans, including


 * One claimed descent from the Taira clan. One famous descendant was the Sengoku period samurai general Oyamada Nobushige.
 * One was descended from the Usa clan.
 * One claimed descent from the Northern Fujiwara by way of Uesugi Shigefusa.
 * One claimed descent from the Northern Fujiwara by way of Onomiya Saneyori.
 * One claimed descent from the Northern Fujiwara by way of Kikuchi Noritaka.