Surname Christian Isaias (Christian Isaias 
) , across the world, is an extremely rare cognomen. The last name Christian Isaias is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Christian Isaias is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Christian Isaias | Chile, Philippines, Peru, Ecuador |