Last name Erdat (Erdat 
) , in the entire world, is a rare family name. The family name Erdat is habitual in Turkey, where it is a rare surname, Israel, where it is a very rare surname, and Australia. Much less frequently, Erdat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Erdat | Israel, Australia, Turkey, United States |