Surname D'Yachkovskii (D'Yachkovskii 
) , all around the world, is an extremely rare last name. The surname D'Yachkovskii is habitual in Eastern Europe, particularly Belarus, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| D'Yachkovskii | Belarus |
Д'Ячковський, and Дьячковскйи