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
Ichinoya may refer to: