Last name Kupetz (Kupetz 
) , worldwide, is a rare cognomen. The surname Kupetz is habitual in Germany, where it is a rare surname, the United States, where it is a very rare surname, and New Zealand. Measured by absolute frequency, it is commonest in Germany, the United States, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Kupetz | United Kingdom, Spain, New Zealand, Germany, United States |
| harry kupetz AT (b. 1909) |
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| günter kupetz German university teacher, DE (b. 1925) |
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| sigrid kupetz German designer and university professor, DE (b. 1926) |
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| andrej kupetz (b. 1968) |
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Mr, John, Joan, Joel, Jeff, Hans, Fran, Inge, Wera, Zack, Jack, Maria, Megan, Missi, Missy, Sally, Shane, Shana, Serge, Steve, Scott, Moshe, Greg, Geri, Gary, Max, Mel, Sam, Kim, Ray, Gil, Lea, Jan, Jim, Tim, Ira, Mary, Mark, Sara, Suzy, Alex, Anna, Paul, Ralf, Dean, Dave, Alice, and Allen