In Croatia, Guci families are Albanians (from Valpovo ). In the past century, relatively most of Croatian residents bearing this family name were born in Kosovo.
Prevalence
Only a few people with faimily name Guci live in Croatia today, in two households only. They are located in two Croatian cities only, in Valpovo (<10) and Zagreb (<5).
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.