Cognomen Kalējs (Kalējs 
, Калейс 
) , in the entire world, is a very rare last name. The last name Kalējs is characteristic of Latvia, where it is quite a rare surname, Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| jānis kalējs Latvian politician, LV (b. 1881) |
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| artūrs kalējs Latvian actor (1907-1999), LV (b. 1907) |
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| konrāds kalējs Latvian war criminal and Holocaust perpetrator, LV (b. 1913) |
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| jānis kalējs Latvian film director (b. 1965) |
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