Last name Oumnya (Oumnya 
) , throughout the world, is a very rare family name. The cognomen Oumnya is habitual in Northern Africa, particularly Morocco, where it is a very rare surname. More frequently, Oumnya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oumnya | Morocco, France |
El J, Malki, Baddou, Isfaoun, Zarhbouch, Choukri, Oubelchdif, Mohammed, Lemoudda, Elkamani, Marrakchi, Benhassou, El Jamaly, Abdellaoui, and Lamkhantar