Sandvikselva

thumb|upright|The Sandvikselva at Olsens Sykkelverksted

The Sandvikselva, formerly known as Løxa, is a river in Bærum, Norway, originating at the intersection of the rivers Lomma and Isielva at Wøyen. The river flows into the Oslo Fjord 4.5 km south at Sandvika, though the center of the city, where it is crossed by the historic Løkke Bridge, the first cast iron bridge in Norway. At the mouth there are three bridges over the river.