Surname Itayama (Itayama 
) , in the entire world, is an extremely rare cognomen. The cognomen Itayama is habitual in Italy, where it is an extremely rare surname, and India. More prevalently, Itayama is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Itayama | Italy, India |
| tomoaki itayama researcher |
|