Hiyama (surname)

Hiyama (written: 檜山, 日山, 桧山, or 肥山) is a Japanese surname. Notable people with the surname include:
 * Emiko Hiyama (肥山 詠美子), Japanese physicist
 * Masaaki Hiyama (日山 正明), Japanese jazz drummer
 * Nobuyuki Hiyama (檜山 修之), Japanese voice actor
 * Shinjiro Hiyama (桧山 進次郎), Japanese baseball player
 * Tamejiro Hiyama (born 1946), Japanese chemist
 * Yuki Hiyama (檜山 勇樹), Japanese footballer