Surname Frolin (Frolin 
, Фролин 
) , in the entire world, is a rare last name. The family name Frolin is habitual in Russia, where it is a rare surname, Sweden, and Belarus. Measured by absolute frequency, it is commonest in Russia, France, and Sweden. Much less frequently, Frolin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Frolin | Philippines, Sweden, United States, India, France |
| Фролин | Belarus, Ukraine, Russia, Kazakhstan |