Last name Януш-Гапон (Януш-Гапон 
) , in the entire world, is an extremely rare cognomen. The surname Януш-Гапон is habitual in Eastern Europe, particularly Ukraine, where it is an extremely rare surname. Parts of the name also exists independently as a last name Януш, and a last name Гапон.
| VARIANT | COUNTRY |
|---|---|
| Януш-Гапон | Ukraine |