Family name Oata (Oata 
) , around the world, is an extremely rare surname. The family name Oata is habitual in South-eastern Asia, particularly Philippines, where it is an extremely rare surname, and Thailand. More prevalently, Oata is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oata | Philippines, Thailand, United States, India, Brazil |