Grubeša families are Croats and they are mostly from Rama (north Herzegovina), Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Rama, Bosnia (Prozor area) and in Middle Bosnia (Gornji Vakuf area). In places Šćipe and Šćit in Rama (Bosnia) every fifth inhabitant had the family name Grubeša.
Prevalence
About 310 people with faimily name Grubeša live in Croatia today, in 120 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 18 cities and 32 other places, mostly in Zagreb (80), Djakovo (45), Vinkovci (30), Piskorevci (25), and in Ivankovo in Vinkovci area (25).
Outside Croatia
Family name Grubeša is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.