Family name ילדרים (Yıldırım 
, ילדרים 
) , around the globe, is a common cognomen. The last name ילדרים is characteristic of Turkey, where it is quite a common surname, Cyprus, and Turkmenistan, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Western Asia, particularly Turkey, Saudi Arabia, and Iraq. Very seldom, ילדרים is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yıldırım | Germany, Iraq, Turkey, Saudi Arabia, China |
| ילדרים | Israel |