Steffen Hagen (born 8 March 1986) is a Norwegian footballer who plays as a defender for Eliteserien side Odd.

He did not start to play organized football before he moved back to Norway as a 15-year-old, and joined the local club Vigør.

[6] After joining Odd, coach Arne Sandstø predicted that Hagen in his first season could be one of the best newcomers in Tippeligaen.

[9] Due to injuries, Hagen was replaced as captain by Morten Fevang mid-season,[10] and at the end of the season Odd was relegated after losing 4–2 on aggregate against Bodø/Glimt in the relegation play-offs,[11] but Hagen missed one of the play-off matches due to an injury he got while he was on the toilet.

[20] Hagen signed a new contract with Odd in July 2012, binding him to the club until the end of the 2015 season.

[25] In Norway's next match against South Korea on 21 January 2012, Hagen replaced Vegar Eggen Hedenstad after 57 minutes.