Yoko Kumada（熊田曜子 Kumada Yoko、May 13, 1982 - ） is a Japanese gravure idol and singer. She is originally from Gifu city, Gifu Prefecture, Japan. Her height is 164cm. Three sizes are B92 W56 H84. The size of the leg is 24.0cm. Blood type is O. Her nickname is Kumayo and Yokochan and Kumachan. Her agency is artist house PYRAMID.