Tenčić families are mainly Croats and they are mostly from Labin area. According to some sources they are from Romania, rarely Italians. In the past century, relatively most of Croatian residents bearing this family name were born in Labin and Pula. In Topid in Labin area every eighth inhabitant had the family name Tenčić.
Prevalence
About 210 people with faimily name Tenčić live in Croatia today, in 100 households. There were 310 of them in the middle of the past century, and their number decreased by 30 percent. They are only located in in 11 Croatian cities and 28 other places, mostly in Labin (25), in Rasa (15) and Topid (15) in Labin area, Zagreb (15), and in Martijanec in Ludbreg area (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.