Ichinoya

Ichinoya may refer to:


 * Ichinoya Mitsuru (一ノ矢 充) (born 1960), former sumo wrestler from Tokunoshima, Ōshima, Kagoshima Prefecture, Japan
 * Ichinoya Tōtarō (一ノ矢 藤太郎) (1856 – 1923), Japanese sumo wrestler from Minamitsugaru District, Aomori Prefecture