Julia Kowalczyk (born 30 September 1997) is a Polish judoka.

She won the gold medal in the women's 57 kg event at the 2018 European U23 Judo Championships held in Győr, Hungary.

[3] In June 2021, she competed in the women's 57 kg event at the World Judo Championships held in Budapest, Hungary.

She competed in the women's 57 kg event at the 2020 Summer Olympics held in Tokyo, Japan.

This biographical article related to Polish judo is a stub.