Katarzyna Juszczak married Schillaci (born 4 March 1972 in Wrocław) is a retired amateur Polish-born Italian judoka and freestyle wrestler, who competed in the women's heavyweight category. She achieved top eight finishes in the 72-kg division at the World Championships (2002 and 2005), and also participated in two editions of the Olympic Games (1992 and 2004) under different banners. She is the mather of the Italian judoka and paralympic Champion Carolina Costa.