Grażyna Maria Kostrzewińska, néeOsmańska (born 26 November 1950 in Toruń) is a Polish former pair skater. With Adam Brodecki, she placed 11th at the 1972 Winter Olympics in Sapporo.[1][2] From 1972, she competed as Grażyna Kostrzewińska, having married footballer Zdzisław Kostrzewiński in 1971.[1]