Last name Ion-Christian (Ion-Christian 
) , all over the world, is an extremely rare cognomen. The cognomen Ion-Christian is habitual in Southern Europe, particularly Spain, where it is an extremely rare surname. More frequently, Ion-Christian is the forename as well as the last name. Parts of the name also exists independently as a first name Ion, and a first name Christian.
| VARIANT | COUNTRY |
|---|---|
| Ion-Christian | Germany, Spain |