Cognomen Ithaisa (Ithaisa 
) , in the world, is a very rare surname. The surname Ithaisa is characteristic of Spain, where it is a rare surname, and Chile, where it is an extremely rare surname. More prevalently, Ithaisa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ithaisa | Chile, Spain, Brazil |