In Croatia, Čezo families are Croats (from Zagreb ).
Prevalence
About 20 people with faimily name Čezo live in Croatia today, in one household only. There were 20 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in 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.