title: Halloy
text: # 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
  