Halloy
# Halloy

Halloy may refer to:

* Jean Baptiste Julien d'Omalius d'Halloy (1783-1875), Belgian geologist
* Halloy, Oise, a French commune
* Halloy, Pas-de-Calais, a French commune
* Château de Halloy, a castle in Halloy, Belgium
* Halloy, Belgium, a village in Belgium
