Family name Швартц (Shvarts 
, Швартц 
) , in the world, is quite a rare surname. The cognomen Швартц is characteristic of Bulgaria, where it is quite a rare surname, Estonia, where it is a rare surname, and Belarus. Measured by absolute frequency, this name is the most popular in the United States, Russia, and Bulgaria.
| VARIANT | COUNTRY |
|---|---|
| Shvarts | Russia, Belarus, Bulgaria, United States, Canada |
| Швартц | Russia, Ukraine |