Surname Ionasc (Ionasc 
) , all around the world, is a rare family name. The family name Ionasc is characteristic of Romania, where it is a rare surname, Italy, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, Ionasc is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ionasc | Romania, United Kingdom, Italy |