Cognomen Aigro (Aigro 
) , in all the world, is a rare surname. The last name Aigro is habitual in Northern Europe, particularly Estonia, where it is quite a common surname, Latvia, where it is a rare surname, and Finland.
| jaan aigro (b. 1890) |
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| kalju aigro (b. 1921) |
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artti aigro Estonian ski jumper, EE (b. 1999) |
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| kalev aigro Estonian Nordic combined skier, EE (b. 1959) |
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