Henricus Calenus or Henri van Caelen (1583–1653) was a clergyman in the Spanish Netherlands, closely involved in the early history of Jansenism.
Born in 1583 at Beringen (in the county of Loon), Henri was the son of Jan van Caelen, a local magistrate, and Catherine Gevaerts.
He studied philosophy and theology at Leuven University, enrolling in Pope's College in 1604 and graduating STL in 1615.
In the meantime, he had been ordained to the priesthood on 27 December 1607 and appointed parish priest of Asse on 31 January 1609.
[3] In 1644, he was named bishop of the vacant see of Roermond, but the pope refused to confirm his appointment, and he relinquished all claim to the nomination in 1648.