Nikolaus von Laun, O.E.S.A. (also known as Nicolaus de Luna and Mikuláš z Loun) was a Bohemian Augustinian friar and scholar. He served as the Prior Provincial of the large Province of Bavaria-Bohemia. Nikolaus was one of the first Theology professors at Charles University in Prague (founded in 1348). He wrote several works in the subject area of homiletics. Between 1362 and his death in 1371 he served as a bishop.