Only a few people with faimily name Marcich live in Croatia today, in households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian cities only, in Zagreb (<5) and Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1606 in source Catholic Church Parish Records.