Marit Helene Fiane Grødum (née Christensen; born 11 December 1980) is a Norwegian former football central back. Christensen married Øystein Grødum on 31 August 2013 and changed her name to Marit Helene Fiane Grødum. Her last club was Amazon Grimstad of Norway's Toppserien league. She was member of the Norway women's national football team, having made her debut on 16 March 2003, in a match against the United States.