Yamada Ryosuke (山田涼介), born May 9, 1993, is a Japanese idol singer and actor from Kanagawa, Japan. He is a member of the Johnny's Entertainment group Hey! Say! JUMP, formerly Hey! Say! 7, and made his debut as a solo artist on January 9, 2013 with the single, "Mystery Virgin" (ミステリーヴァージン). Ryosuke entered Johnny & Associates on August 12, 2004 as a trainee. Among the members of the original Hey! Say! 7, he was the last to enter. He was a member of Johnny's Jrs. group Kitty Jr.