Itai Keisuke (板井圭介, Itai Keisuke, 21 March 1956 – 14 August 2018) was a Japanese sumo wrestler from Usuki, Oita, Japan. His highest rank was komusubi. He held the record for most consecutive victories from entry into sumo for several years before it was broken by Jōkōryū in 2012. After his retirement, Itai caused controversy by claiming that the outcomes of many of his matches were set by match-fixing.