Onhaye is a Walloon municipality located in the Belgian province of Namur. On January 1, 2006, Onhaye had a total population of 3,120. The total area is 65.53 km² which gives a population density of 48 inhabitants per km².
The municipality consists of the following sub-municipalities: Onhaye proper, Anthée, Falaën, Gerin, Serville, Sommière, and Weillen.
The region is home to several cultural heritage monuments, such as Château de Fontaine and the fortified farmhouse Falaën Castle.
Château de Fontaine, west of Onhaye
- Media related to Onhaye at Wikimedia Commons