Krystyna Ścibor-Bogusławska (?-1783) was a Polish official, serving as governor, Lady of regality, of Wągłczew, by appointment of King Poniatowski[1][2] from 1773 to 1782.
Born into the Clan Ostoja,[3] she was the daughter of Anna Jankowska and Franciszek Ścibor-Bogusławski,[4] a captain of the National Cavalry.
She married Antoni Łubieński the governor of Wągłczew, who was the son of Wiktoria Sariusz-Kałowska and Aleksander Łubieński also the governor in Wągłczew.
After the death of her husband on 1 November 1773, King Stanisław August Poniatowski made her Governor of Wągłczew for life.
She remarried, to Józef Byszewski, an Army colonel, with whom she had two children.