In Croatia, Certin families are Croats (from Dugo Selo ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Dugo Selo.
Prevalence
Only a few people with faimily name Certin live in Croatia today, in one household only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in only two naselja i to in Dugo Selo (<10) and Prozorje (<5).
Outside Croatia
Family name Certin (including: Chertin , Certyn and Zertin ) is present in 14 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.