Family name Marius Ionut (Marius Ionut 
) , in the world, is a rare surname. The surname Marius Ionut is characteristic of Romania, where it is quite a rare surname, Italy, where it is a very rare surname, and Spain, where it is an extremely rare surname. More prevalently, Marius Ionut is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marius Ionut | Italy, United Kingdom, Romania, Spain, Bulgaria |