Potočnik is seventh most frequenthttp://www.stat.si/eng/imena_baza_priimki.asp?ime=&priimek=Potočnik&spol= surname in Slovenia. It is most common in the northern and eastern regions of the country, while it is almost nonexistent in the west and south. It may refer to:
Herman Potočnik (1892–1929), Slovene rocket engineer and pioneer of astronautics Janez Potočnik (1749–1834), Baroque painter Janez Potočnik (born 1958), Slovenian politician
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