Oyamada (written: 小山田 lit. "hill field") is a Japanese surname. Notable people with the surname include:
*, Japanese writer
*, Japanese samurai
*, Japanese actress
* Oyamada Clan, Japanese clan
See also
*, train station in Hanamaki, Iwate Prefecture, Japan
* former village in Ayama District, Mie Prefecture, Japan
*, Japanese surname using the same kanji
{{surname, Oyamada
Japanese-language surnames