Vianen
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Vianen_vlag.svg/150px-Vianen_vlag.svg.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Coat_of_arms_of_Vianen%2C_Utrecht.svg/90px-Coat_of_arms_of_Vianen%2C_Utrecht.svg.png)
Vianen is a former municipality in the Dutch province of Utrecht, and of South Holland. The municipality was merged with the former municipalities of Leerdam and Zederik on 1 January 2019. The name of the new municipality is Vijfheerenlanden, which is a part of the province of Utrecht.