Surname Jadrin (Jadrin 
, Ядрин 
, Жадрин 
) , all around the world, is a rare cognomen. The last name Jadrin is characteristic of Azerbaijan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Estonia. In absolute terms, it most frequently occurs in Azerbaijan, Russia, and Kazakhstan. Very seldom, Jadrin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jadrin | Philippines, Germany, Estonia, Malaysia, France |
| Ядрин | Kyrgyzstan, Russia, Ukraine, Kazakhstan |
| Жадрин | Russia, Azerbaijan, Kazakhstan |