Mayuko Nishiyama (西山 繭子, Nishiyama Mayuko, January 21, 1978) is a Japanese actress and writer born in Tokyo, who is affiliated with the agency FLaMme. She is 165 cm tall and her blood type is A. Her father is the writer Shizuka Ijūin (伊集院 静, Ijūin Shizuka).
