|o Mayor||Ovide Monin|
|o Governing party/ies||LB 2006|
|o Total||56.84 km2 (21.95 sq mi)|
|o Density||160/km2 (420/sq mi)|
Yvoir (French pronunciation: [i.vwa?]; Walloon: Uwar) is a Walloon municipality located in the Belgian province of Namur. On 1 January 2006 the municipality had 8,450 inhabitants. The total area is 56.84 km², making it a population density of 149 inhabitants per km².
Yvoir was the host city of the 1975 UCI Road World Championships