Surname Obonan (Obonan 
) , worldwide, is a rare last name. The last name Obonan is habitual in Philippines, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Obonan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Obonan | United States, Philippines |