Last name Potočnik (Potocnik 
, Potočnik 
, Поточник 
) , around the globe, is quite a common cognomen. The last name Potočnik is habitual in Southern Europe, particularly Slovenia, where it is a common surname, Montenegro, where it is quite a rare surname, and Croatia. Not in comparison with a country's population, it is the most numerous in Slovenia, Austria, and Sierra Leone.
| VARIANT | COUNTRY |
|---|---|
| Potocnik | United States, Croatia, Austria, Slovenia, Sierra Leone |
| Potočnik | United Kingdom, United States, Croatia, Slovenia, Germany |
| Поточник | Ukraine, Russia |
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jožef potočnik Mayor of Ljubljana, SI (b. 1753) |
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blaž potočnik (1799-1872), SI (b. 1799) |
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| janez potočnik painter, SI (b. 1749) |
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| fran potočnik SI (b. 1811) |
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alojzij potočnik Slovene teacher, SI (b. 1876) |
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herman potočnik Slovenian inventor (1892-1929), HR (b. 1892) |
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miha potočnik Slovene mountaineer, SI (b. 1907) |
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vinko potočnik Slovenian theologian, sociologist, psychologist and educator, SI (b. 1947) |
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| janez potočnik SI (b. 1892) |
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| franc potočnik Yugoslav military officer and journalist, SI (b. 1903) |
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| ciril potočnik SI (b. 1894) |
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vika potočnik Slovene politician, SI (b. 1957) |
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janez potočnik Slovenian politician, SI (b. 1958) |
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tone potočnik SI (b. 1951) |
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bojan potočnik SI (b. 1954) |
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Ana, Luka, Jani, Jana, Jaka, Jure, Tara, Tone, Tina, Nace, Niko, Nika, Nina, Nejc, Vida, Ivan, Igor, Zala, Žan, Črt, Maria, Mario, Leon, Lara, Dina, Rudi, Kim, Rok, Lea, Jan, Tea, Nik, Ema, Eva, Vid, Iva, Marko, Mark, Maja, Meta, Miha, Alen, Anej, Anja, Ajda, Kaja, Pika, Robi, Maks, and Manca