Family name Gerasimos (Gerasimos 
, Герасим 
, Γεράσιμος ) , across the world, is a common last name. The cognomen Gerasimos is habitual in Greece, where it is a common surname, Armenia, where it is quite a common surname, and Bulgaria, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Greece, Ukraine, and Armenia. Likewise, Gerasimos is the forename as well as the last name.