Cognomen Ieriko (Ieriko 
) , all around the world, is a very rare surname. The last name Ieriko is habitual in New Zealand, where it is a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Ieriko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ieriko | United States, Australia, New Zealand |