Børselva (, ) is a river in Porsanger Municipality in Finnmark county, Norway. The long river runs from the mountains down to the village of Børselv, and it then empties out into the Porsangerfjorden. The river has a watershed and at the mouth, the water discharges at a rate of .

Børselva (, ) is a river in Porsanger Municipality in Finnmark county, Norway. The long river runs from the mountains down to the village of Børselv, and it then empties out into the Porsangerfjorden. The river has a watershed and at the mouth, the water discharges at a rate of .