Ryuichi Kiyonari (????) (born September 23, 1982, in Saitama, Japan) is a professional motorcycle road racer.
For 2019 he is competing in World Superbikes with a new team formed by Honda Racing Corporation and Moriwaki Engineering, using the 2019 Honda Fireblade and teammate Leon Camier.
He previously rode a Honda CBR1000RR in the MFJ All-Japan Road Race JSB1000 Championship.
He was the 2006, 2007 and 2010 British Superbike champion and enjoys fame and popularity amongst British motorcycle race fans due to his success and personality.
He raced for Honda Asia in 2012.
He also won the 2008 Suzuka 8-Hour race, teamed with his former WSBK teammate Carlos Checa.
He has a reputation for taking his time to settle into a race after the start and coming on strong in the later stages.