Family name S Omar (S Omar 
) , globally, is a very rare cognomen. The cognomen S Omar is habitual in Malaysia, where it is a rare surname, and Iraq. Much less frequently, S Omar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| S Omar | Iraq, Malaysia, Canada |
Omar, Samar, Deary, Noor Salwah, and Siti Nadiah