Only a few people with faimily name Musi live in Croatia today, in two households only. They are located in two Croatian cities only, in Pula (<5) and Mali Losinj on the Island of Losinj (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.