Family name איידין (Aydin 
, איידין 
) , all over the world, is a widespread cognomen. The surname איידין is characteristic of Turkey, where it is a widespread surname, Azerbaijan, where it is quite a common surname, and Austria. In absolute terms, it most frequently occurs in Turkey, Germany, and France. Very seldom, איידין is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aydin | Germany, France, United States, Azerbaijan, Turkey |
| איידין | Israel |