Cognomen Oleński (Oleński 
) , all around the world, is a very rare last name. The cognomen Oleński is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| zbigniew oleński Officer of the Polish Army, PL (b. 1907) |
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| józef oleński Polish economist, PL (b. 1941) |
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| kamil oleński researcher |
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