Ōta Tokitoshi (太田 時敏, 16 January 1839 – 20 January 1915) was a samurai of Morioka and a Sanbongi Shinden Goyogakari (new rice field affairs official in Sanbongi) of the late Edo period. He was Nitobe Inazō's uncle. He was named Renhachiro (練八郎) in his youth.