Nausta is a river in Sunnfjord Municipality in Vestland county, Norway. It runs through the Naustdal valley to the southwest before emptying into Førde Fjord at the village of Naustdal below Kletten Hill. The long river drains a watershed area of about . The river begins at the lake Inste Langevatnet, which sits high up in the mountains at an elevation of above sea level.