Jan Milíč z Kroměříže (Latin: Ioannes Milicius; German: Johann Militsch) (died June 29, 1374) is a Czech Catholic priest and the most influential preacher of the emerging Bohemian Reformation in the fourteenth century.

Together with other Bohemian preachers and writers of that time, he paves in a certain sense the way for the reforming activity of Jan Hus.