Cognomen Obash (Obash 
) , across the world, is a rare surname. The surname Obash is habitual in Kenya, where it is a rare surname, Nigeria, where it is an extremely rare surname, and Philippines. Measured by absolute frequency, it is commonest in Kenya, Nigeria, and India. Much less frequently, Obash is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Obash | Kenya, Philippines, India, Nigeria |