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Family name Onao (Onao
) , in the world, is a rare cognomen. The last name Onao is characteristic of Philippines, where it is a rare surname, Nigeria, where it is an extremely rare surname, and the United Kingdom. More prevalently, Onao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onao | Philippines, Japan, Nigeria, United States, United Kingdom |