Family name Isdahl (Isdahl 
) , around the globe, is a rare cognomen. The cognomen Isdahl is characteristic of Norway, where it is quite a rare surname, Sweden, where it is a rare surname, and New Zealand, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Norway, the United States, and Sweden.
| VARIANT | COUNTRY |
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| Isdahl | Canada, Norway, Argentina, Sweden, United States |
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hallgeir isdahl |
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| bård isdahl Norwegian poet (b. 1946) |
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| hennie ann isdahl Norwegian painter |
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| zachary isdahl researcher (ORCID 0000-0002-4933-3880) |
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| eirik isdahl |
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| mia christine isdahl Norwegian ice hockey player, NO |
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Mr, Hugo, Finn, Zoia, Sarah, Silje, Signe, Steve, Scott, Alice, Emma, Alvin, Chris, Craig, Baard, Brian, Peter, Roger, Runar, Diana, Laura, Alton, Larry, Troy, Jean, Ms, Ada, Kim, Per, Jan, Jim, Tor, Tim, Ole, Thad, Mary, Adam, Cody, Brad, Kate, Ryan, Geir, Lars, Lisa, Lynn, Anne, and Leroy