Aya Hirayama, born January 13, 1984, is a Japanese actress who has appeared in various films including Waterboys (2001), as well as appearing in two television programs in her native Japan, Waratte Iitomo and Itsumo futari de. She recently starred in the South Korean movie Fighter in the Wind as Youko and also in the Japanese television series Haruka 17 in the leading role as Haruka. She is left-handed.