Mizuho Ōta (太田 水穂, Ōta Mizuho; 9 December 1876 – 1 January 1955) was the pen-name of Teiichi Ōta (太田 貞一, Ōta Teiichi), a Japanese poet and scholar of Japanese literature, active in Shōwa period Japan. He also occasionally used another pen name, Mizuhonoya.
Source: “Mizuho Ōta”, English Wikipedia (CC BY-SA 4.0), excerpt