Cognomen صدفه (صدفه 
) , across the world, is quite a common last name. The family name صدفه is habitual in Northern Africa, particularly Sudan, where it is quite a rare surname, Egypt, and Libya. Not in comparison with a country's population, it is commonest in Egypt, Sudan, and Iraq. Likewise, صدفه is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| صدفه | Iraq, Egypt, Libya, Sudan, Saudi Arabia |