Iwanicki (feminine Iwanicka) is a Polish surname, it originated as a toponymic surname for someone from Iwaniec (now Iwonicz) in Krosno Voivodeship, or Iwanki, Iwanovice, or other places. Notable people include:
Krzysztof Iwanicki, Polish footballer Leszek Iwanicki, Polish footballer Piotr Iwanicki, Polish dancer Sebastian Iwanicki, Polish footballer Stanisław Iwanicki, Polish politician
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