Family name Helfenberger (Helfenberger 
) , around the globe, is a rare surname. The cognomen Helfenberger is characteristic of Liechtenstein, where it is quite a rare surname, Switzerland, and Costa Rica, where it is a rare surname. Measured by absolute frequency, the name is most common in Switzerland, Brazil, and the United States. Very seldom, Helfenberger is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Helfenberger | Germany, France, Brazil, United States, Switzerland |
| karl helfenberger DE (b. 1878) |
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mirjam helfenberger Swiss painter and musician, CH (b. 1966) |
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| monique helfenberger (b. 1939) |
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| notker helfenberger |
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Ma, Ryan, Gary, Lara, Luiz, John, Jean, Nate, Nina, Fred, Ingo, Olga, Osni, Yuri, Maria, Marco, Marli, Shane, Simon, Sonia, Aline, Andre, Remo, Rolf, Rosa, Pius, Mr, Ms, An, Max, Ana, Amy, Kay, Dan, Jan, Joe, Aaron, Ivo, Marc, Mary, Mark, Sina, Sven, Anna, Chad, Brad, Kara, Kirk, Urs, and Clara