Date of Birth: 
Place of Birth: Kalisz, Greater Poland Voivodeship, Poland
About Klaudia Grzelak
- Klaudia Grzelak (born 12 February 1996) is a Polish volleyball player.
- She plays for LTS Legionovia Legionowo in the Orlen Liga.Grzelak was part of the winning Polish team at the 2013 Girls' Youth European Volleyball Championship.
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