Across the world, Йонов (Ionov 
, Jonov 
, Йонов 
) is a very rare mostly male, but infrequently girly first name. The forename Йонов is habitual in Eastern Europe, particularly Czechia, where it is a rare male name. Predominantly, Йонов is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ionov | Moldova, Bulgaria, United States, Germany, Russia |
| Jonov | Bulgaria, Estonia, United States, Germany, Russia |
| Йонов | Russia, Bulgaria, Ukraine |