Raudvatnet (English: the red lake) is a lake in the municipality of Rana in Nordland county, Norway. The European route E12 highway between Mo i Rana and Sweden passes along the northern and eastern shores of the lake. A Red cross hut (Rauvasshytta) is located east of Raudvatnet. Water flows into the lake Raudvatnet primarily from the nearby lake Tverrvatnet to the south.