Isoyama

Isoyama (written: 磯山) is a Japanese surname. Notable people with the surname include:


 * Hiroshi Isoyama (磯山 博), Japanese aikidoka
 * Kazushi Isoyama (磯山 和司), Japanese footballer
 * Sayaka Isoyama (磯山 さやか), Japanese gravure idol, television personality, actress and writer