Last name Welscher (Welscher 
) , all over the world, is quite a rare surname. The cognomen Welscher is habitual in Western Europe, particularly Luxembourg, where it is quite a rare surname, Germany, and Netherlands, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Netherlands. Very seldom, Welscher is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Welscher | Germany, Luxembourg, Netherlands, France, United States |
| willi welscher German athletics competitor, DE (b. 1906) |
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| lucien welscher Luxembourgish association football player, LU (b. 1947) |
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| claudia welscher German biathlete, DE (b. 1968) |
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| te welscher |
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Mr, Tony, Nick, Eric, Evan, Hans, Fred, Ilse, Maria, Manon, Sarah, Steve, Stacy, Antje, Anita, Aimee, Carol, Craig, Cindi, Cyndi, Brian, Bryan, Joan, Katja, John, Lynn, Ms, Max, Kym, Pit, Jan, Jay, Eva, Ute, Marc, Mary, Mark, Anja, Cory, Cody, Kurt, Kyle, Rose, Ryan, Dave, Gary, Lily, Josh, and Keith