Otani Family History
Otani Name Meaning
Japanese:: written 小谷 ‘small valley’. It is more usually pronounced Kotani or Koya. All three forms are from western Japan. (Ōtani): written 大谷 ‘large valley’. It is mainly found in western Japan. Pronunciation Ōya is found in eastern Japan.
Source: Dictionary of American Family Names 2nd edition, 2022