Family name Герасим (Герасим 
, Gerasim 
, Guerasim 
) , in the entire world, is quite a rare cognomen. The surname Герасим is habitual in Armenia, where it is quite a common surname, Bulgaria, where it is quite a rare surname, and North Macedonia. Not in comparison with a country's population, it is the most numerous in Ukraine, Armenia, and Bulgaria. Also, Герасим is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Герасим | Kazakhstan, Armenia, Russia, Bulgaria, Ukraine |
| Gerasim | Russia, Georgia, North Macedonia, Belarus, Bulgaria |
| Guerasim | Romania |
| Herasym | Czechia, Spain, United States, Canada, Ukraine |
| хуыгаты георгийы фырт герасим South Ossetian politician, GE (b. 1945) |
|