Kasai (surname)

Kasai (written: 河西, 葛西 or 笠井) is a Japanese surname. Notable people with the surname include:


 * Akira Kasai (笠井 亮), Japanese politician
 * Akira Kasai (dancer) (笠井 叡), Japanese dancer
 * Haruka Kasai (葛西 春香), Japanese Nordic combined skier and ski jumper
 * Hisashi Kasai (葛西 久), Japanese ice hockey player
 * Jun Kasai (葛西 純), Japanese professional wrestler
 * Ken'ichi Kasai (カサヰ ケンイチ), Japanese anime director
 * Kenji Kasai (笠井 賢二), Japanese table tennis player
 * Kenta Kasai (笠井 健太), Japanese football player
 * Kimiko Kasai (笠井 紀美子), retired Japanese jazz singer
 * Masae Kasai (河西 昌枝), former Japanese volleyball player
 * Morio Kasai (葛西 森夫), Japanese surgeon
 * Noriaki Kasai (葛西 紀明), Japanese ski jumper
 * Tomomi Kasai (河西 智美), Japanese singer, actress and a former member of the idol group AKB48
 * Yoshiko Yoshiizumi (葛西 賀子) née Kasai (born 1980), Japanese ski jumper
 * Yūichi Kasai (葛西 裕一), Japanese boxer and boxing trainer
 * Yuna Kasai (葛西 優奈), Japanese Nordic combined skier and ski jumper