At club level Guðbjörg has previously represented LSK Kvinner FK and Avaldsnes IL of the Norwegian Toppserien, Turbine Potsdam of the German Frauen-Bundesliga and FH and Valur of the Icelandic Úrvalsdeild.

But several other players left due to economic downsizing and when the club was relegated in 2012 she had to leave to protect her national team place.

"[4] Unable to dislodge Ann-Katrin Berger from the starting goalkeeper position at Turbine, Guðbjörg moved back to Norway with LSK Kvinner FK in July 2014.

Declaring "it feels great to be back", Guðbjörg looked forward to challenging Susanne Nilsson for a place in the team.

[9] National team coach Siggi Eyjólfsson selected Guðbjörg in the Iceland squad for UEFA Women's Euro 2013,[10] while rival goalkeeper Þóra Björg Helgadóttir was recovering from a hamstring injury.