Last name Kałas (Kałas 
) , globally, is a very rare surname. The last name Kałas is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| edmund kałas PL (b. 1899) |
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| andrzej kałas Polish basketball player, PL (b. 1938) |
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| wojciech kałas Polish researcher, molecular biologist, PL |
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