Surname Giera (Giera 
) , in all the world, is quite a rare cognomen. The cognomen Giera is habitual in Poland, where it is quite a rare surname, Germany, where it is a rare surname, and New Zealand. Measured by absolute frequency, this name is the most popular in Poland, Germany, and the United States. Also, Giera is the forename as well as the last name.
| ottorino giera Italian politician, IT (b. 1841) |
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| adam giera (b. 1951) |
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| jean-françois giera FR (b. 1954) |
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| brian giera researcher |
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| wojciech giera researcher |
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| martin giera researcher |
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| stefanie giera researcher |
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| madeleine giera German association football player, DE |
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| david s giera researcher |
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| martin giera DE (b. 1979) |
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| joachim giera |
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| adam giera |
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