Family name Usenya (Usenya 
, Усеня 
) , across the world, is a rare surname. The family name Usenya is characteristic of Belarus, where it is quite a rare surname, Kenya, where it is a rare surname, and Kazakhstan. In absolute terms, it is the most numerous in Belarus, Russia, and Kenya.
| VARIANT | COUNTRY |
|---|---|
| Usenya | Belarus, Russia, Kenya |
| Усеня | Belarus, Russia, Kazakhstan, Ukraine |