Chiaki Kuriyama (栗山 千明, Kuriyama Chiaki, born October 10, 1984) is a Japanese actress, singer, and model. She is best known in the West for her roles as Takako Chigusa in Kinji Fukasaku's 2000 film Battle Royale and Gogo Yubari in Quentin Tarantino's 2003 film Kill Bill: Volume 1.
She was born in Tsuchiura, Ibaraki. Kuriyama was a popular model during Japan's child model boom in the mid-1990s. In 1997, she appeared in the photobooks Shinwa-Shōjo (Girl of Myth) and Shōjokan (Girl's Residence), photographed by Kishin Shinoyama. Shinwa-Shōjo became a best-seller but, as it contained some nudity, was discontinued by the publisher in 1999 after the institution of new anti–child pornography laws. She also posed as a model for the child fashion magazines Nicola (1997–2001) and Pichi Lemon (1996–2001).
She first achieved widespread recognition as an actress in Japan for her starring roles in the horror films Shikoku (1999) and Ju-on (2000). Chiaki also appeared in the 2000 action film Battle Royale as Takako Chigusa.