Last name Исунц (Исунц 
, Isounts 
) , worldwide, is a very rare cognomen. The cognomen Исунц is characteristic of Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Исунц is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Исунц | Armenia, Russia |
| Isounts | United States |