Dag Ringsson

Dag Ringsson ? - ?, member of Olav Haraldsson's army at the battle of Stiklestad.

According to Snorre, Dag was a descendant of Harald Fairhair. His family had settled in Sweden, and Dag was a nobleman at the service of the Swedish king. While travelling through Sweden in 1030, Olav was able to recruit him and his manpower to his project of recapturing Norway.

After the king had fallen at Stiklestad, Dag led his forces for the remainder of the battle. However, the peasant army soon overwhelmed the remnants of the king's men; Dag and his followers fled back to Sweden. Dag Ringsson did not appear at the political scene of Norway at any point later.