Cognomen Boudnikova (Будникова 
, Boudnikova 
) , across the world, is quite a common family name. The cognomen Boudnikova is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Moldova, and Russia. In absolute terms, this name is the most popular in Russia, Belarus, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Будникова | Kazakhstan, Russia, Belarus, Moldova, Ukraine |
| Boudnikova | Canada, Czechia |