Family name Slugina (Slugina 
, Слугина 
) , in the entire world, is quite a rare cognomen. The surname Slugina is habitual in Russia, where it is quite a rare surname, Estonia, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Russia, Kazakhstan, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Slugina | Norway, Russia, Estonia, Bulgaria, Ukraine |
| Слугина | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |