Johannes Mangon (c. 1525 in Liège – 1578 in Aachen) was a Francophone Belgian composer.
He was selected while a boy in Liége to join the choir at the Cathedral of Aix-la-Chapelle, that is to say Aachen in modern Germany.
He rose to become maître de chapelle.
[1][2] Among his surviving works are 20 masses.
[3][4] He died of the plague in 1578 and was succeeded by Lambertus de Monte (Liége, d.1606) and then Michael Wilhelm (fl.