Cognomen Sameddin (Sameddin 
, Самеддин 
) , across the world, is an extremely rare surname. The cognomen Sameddin is habitual in Georgia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Much more prevalently, Sameddin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sameddin | Azerbaijan, Russia, Georgia, United States, India |
| Самеддин | Russia, Ukraine |