In Croatia, Lech families are generally Croats (from Osijek area ), rarely Germans (from Osijek ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Vinkovci area.
Prevalence
About 10 people with faimily name Lech live in Croatia today, in three households only. They are only located in in one Croatian city and another small place , mostly in Osijek (<10) and Bilje in Osijek area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.