Kazunari Ninomiya (二宮 和也, Ninomiya Kazunari, born June 17, 1983), often called Nino (ニノ), is a Japanese singer, songwriter, actor, voice actor, presenter and radio host. He is a member of the Japanese idol group Arashi.
His career began in the entertainment industry after joining the Japanese talent agency Johnny & Associates in 1996 aged 13. Prior to his debut as a member of Arashi, Ninomiya started an acting career when he was cast as Chris for the stage play Stand by Me, which was based on the film of the same name.
Apart from his group's activities, he starred in numerous television drama, movie and stage production, and has been regarded as the actor of Arashi. Described as an actor who can act with his mouth and eyes, Ninomiya has won a number of awards and nominations for his roles.