Niccolò Albergati (1373 – 9 May 1443) was an Italian Roman Catholic prelate and professed member from the Carthusians. He became a cardinal and had served as a papal diplomat to France and England (1422–23) in addition to serving as the bishop of Bologna from 1417 until his death. His student Tommaso Parentucelli later became pontiff and assumed the papal name "Nicholas" in honor of his mentor and patron. His other noted student Enea Silvio Bartolomeo Piccolomini also became pope sometime after Parentucelli. His beatification received confirmation from Pope Benedict XIV on 25 September 1744.