Yūko Odagiri (小田切 悠子, Odagiri Yūko, born February 16, 1987 in Ayase, Kanagawa, Japan), known by her stage name Yuu Kashii (香椎 由宇, Kashii Yuu), is a Japanese actress and model. She studied at Mejiro University, where she majored in English. ()
Yuu Kashii got her start in the entertainment business as a model for the Japanese teen magazine mc Sister back in 2001. Her first acting role was in the movie adaptation of Lorelei: The Witch of the Pacific Ocean in which she played the title character in the film.