Cognomen Kaupas (Kaupas 
, Каупас 
) , in all the world, is a rare family name. The cognomen Kaupas is habitual in Lithuania, where it is quite a common surname, the United States, where it is a very rare surname, and the United Kingdom. In absolute terms, the name is most common in Lithuania, the United States, and Russia. Much less frequently, Kaupas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaupas | United Kingdom, Poland, Canada, United States, Lithuania |
| Каупас | Ukraine, Russia |
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julius kaupas LT (b. 1890) |
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ignas kaupas LT (b. 1918) |
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| antanas kaupas LT (b. 1870) |
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| maria kaupas Lithuanian-American religious foundress, US (b. 1880) |
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| anthony b. kaupas US (b. 1870) |
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| povilas kaupas LT (b. 1898) |
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| julius kaupas Lithuanian writer, LT (b. 1920) |
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gediminas kaupas cyclist, LT (b. 1988) |
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| natas kaupas American skateboarder, US (b. 1969) |
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| algis kaupas |
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Mr, Brian, Robin, Redas, Rhawn, David, Grace, Laura, Linda, Liuda, Jacek, Jonas, Jules, Tania, Traci, Helen, Vilma, Frank, Irene, Wiley, Marion, Marius, Cathy, Agata, Algis, Scott, Ken, Kã, Dan, Jan, Jay, Mary, Mark, Cwon, Paul, Ryan, Mantas, Dave, Lisa, Lori, John, Juli, Otto, Maria, Mindy, Susan, Steve, Stacy, Dale, and Shelly