Joanna Sadkiewicz (née Jagodzińska; born 1 January 1966) is a Polish and German (from 1992) chess Woman International Master (WIM) (1986).
A year later, at the World Youth Chess Championship in U20 girl's age group in Mexico, she ranked 3rd and won the bronze medal.
In 1984 (in Katowice) and 1985 (in Dobrna in Yugoslavia) she represented Poland at the European Junior Chess Championships and ranked 5th in both tournaments.
From 1983 to 1994 Joanna Sadkiewicz eleven times participated in Polish Women's Chess Championship finals, winning two silver (Sandomierz 1985,[1] Lubniewice 1991[2]) and two bronze (Konin 1984,[3] Świeradów-Zdrój 1992[4]) medals.
Joanna Sadkiewicz achieved the highest rating in her career so far on July 1, 1991, with a score of 2225 points, she was ranked 5th place among Polish female chess players.