Family name Kalfas (Kalfas 
) , all over the world, is quite a rare surname. The surname Kalfas is characteristic of Greece, where it is quite a common surname, Bulgaria, where it is a rare surname, and Poland. Measured by absolute frequency, the name is most common in Greece, the United States, and Poland. Very seldom, Kalfas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalfas | Germany, Australia, Greece, United States, Poland |
| franciszek kalfas Polish sculptor, PL (b. 1898) |
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| ioannis kalfas researcher |
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| anestis kalfas researcher |
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| sotos kalfas Swedish bacteriologist and microbiologist, SE |
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Mr, Ania, Arek, Adam, Beth, Bill, Kris, Paul, Rali, Riga, Ruth, Dana, Dawn, Leah, Leta, Lisa, Lynn, Jane, John, Joan, Jean, Theo, Anna, Nick, Alan, Sian, Ms, Ed, Ann, Amy, Bob, Kon, Kim, Dan, Don, Gus, Lee, Jan, Jay, Joy, Jim, Tom, Mary, Mark, Mina, Mike, Sara, Alex, and Nina