Surname Kariagin (Kariagin 
, Кариагин 
) , in all the world, is a very rare cognomen. The last name Kariagin is habitual in Lithuania, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kariagin | Lithuania, United States |
| Кариагин | Russia |