Career
Dahm originally came from Lyn"s youth department. He played four games in 2000, but was then injured. Ahead of the 2003 season he left Lyn for Lørenskog IF. Ahead of the 2006 season he joined Sparta Sarpsborg.
In 2007 and 2008 he played for Drøbak/Frogn Illinois, before he returned to Lyn before the Norwegian Premier League 2009 season.
He is the older brother of Mads Dahm who also plays for Lyn.