Johann Parler the Younger (Czech: Jan Parléř, German: Johann Parler der Jüngere, [ˈjan ˈparlɛːr̝̊]; c. 1359 – 1405/06), was a Bohemian architect of German origin from the prominent Parler family of architects, master builders, and sculptors. He was the son of famous Gothic architect Peter Parler, the builder of Saint Vitus Cathedral and Charles Bridge in Prague. His uncle (i.e. Peter’s brother) was Johannes von Gmünd also known as Johann Parler the Elder, a German Gothic master builder who was architect of Freiburg Minster and also rebuilt the damaged Basel Minster.