Named after Saint Hubert (around 656–727), or the Ardennes town named after him.
A Frankish noble and keen hunter, Hubert became the first bishop of Liège in 708. He is a patron saint of hunters, and his feast day is 3 November. The Belgian Ardennes town of Saint-Hubert is named after him. In Merl, Rue de Saint-Hubert meets Rue de Merl at the village church, which is dedicated to another saint, Gangolf.