Surname Ионеско (Ionescu 
, Ionesco 
, Ионеско 
) , worldwide, is a common family name. The surname Ионеско is characteristic of Romania, where it is a common surname, Moldova, where it is quite a common surname, and Maldives, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Romania, Italy, and the United States. Much less frequently, Ионеско is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ionescu | Germany, Spain, Romania, United States, Italy |
| Ionesco | Germany, France, Romania, United States, Italy |
| Ионеско | Kazakhstan, Russia |
| Ionesko | Germany |