Barbara Jagiellon, Duchess consort of Saxony and Margravine consort of Meissen (d. 1534)
Barbara Jagiellon (15 July 1478 – 15 February 1534) was a Polish princess member of the Jagiellonian dynasty and by marriage Duchess of Saxony.

Born in Sandomierz, she was the sixth daughter of King Casimir IV of Poland and Archduchess Elisabeth of Austria. She was named after her great-grandmother, Barbara of Cilli, Holy Roman Empress.