Surname Issaia (Issaia 
) , worldwide, is a very rare family name. The last name Issaia is characteristic of Australia, where it is a very rare surname, France, where it is an extremely rare surname, and Nigeria. Also, Issaia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Issaia | Australia, Nigeria, France, India, South Africa |