Surname Oumaru (Oumaru 
) , around the globe, is a rare family name. The family name Oumaru is characteristic of Libya, where it is a rare surname, Cameroon, and Niger. Likewise, Oumaru is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oumaru | Niger, Libya, Gambia, Nigeria, Cameroon |