Family name Hollas (Hollas 
) , in the entire world, is quite a rare last name. The cognomen Hollas is habitual in Isle of Man, where it is quite a rare surname, Estonia, and Rwanda, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Kenya, Brazil, and the United States. Very seldom, Hollas is the forename as well as the last name.
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| Hollas | Germany, Brazil, United States, Kenya, United Kingdom |
| hugo hollas American football player (1945-1995), US (b. 1945) |
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| donald hollas American football player, US (b. 1967) |
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| michael a hollas researcher ORCID ID = 0000-0002-0797-3134 |
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| leon hollas German archer |
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| camila ester hollas researcher (ORCID 0000-0002-4582-0569) |
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| boris hollas DE (b. 1970) |
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| daniel hollas researcher |
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| boris hollas Dr. rer. nat. Universität Ulm 2005 |
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| david hollas candidate in United Kingdom General Election |
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| ondrej hollas Czech rower, CZ (b. 1995) |
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