维欧尔河是法国的河流，位于该国西南部，属于阿韦龙河的左支流，河道全长168公里，流域面积1,530平方公里，平均流量每秒6立方米，发源自米约以北，河口处在拉居埃皮耶。

• http://www.geoportail.fr
• The Viaur at the Sandre database

The Viaur is a 168 km long river in south-western France, left tributary of the Aveyron River. Its source is in the southern Massif Central, north of Millau. It flows generally west through the following départements and towns:

The Viaur flows into the Aveyron River in Laguépie.