Worldwide, Ионеско (Ionescu 
, Ionesco 
, Ионеско 
) is quite a rare gender-neutral forename. The first name Ионеско is habitual in Romania, where it is quite a common unisex name, Afghanistan, where it is a rare male name, and Italy, where it is a rare gender-neutral name. More prevalently, Ионеско is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ionescu | Germany, Spain, Romania, United States, Italy |
| Ionesco | Germany, France, Romania, United States, Italy |
| Ионеско | Kazakhstan, Russia |
| Ionesko | Germany |