Joanna Wołoszyk (née Kozłowska, born 19 January 1995) is a Polish handball player for Saint-Amand Handball and the Polish national team.

In season 2017/2018 she played in the Women's EHF Champions League and Women's EHF Cup where she scored 33 goals in 11 matches.

She has come to final EHF Challenge Cup where her team Pogon lost with Rocasa Gran Canaria.

In 2020, she joined French club Saint-Amand Handball.

This biographical article related to Polish team handball is a stub.