Margrét Lára Viðarsdóttir (born 25 July 1986) is an Icelandic former footballer who played in the striker position. She is the all-time top goalscorer of Iceland's national team and competed for her country at the UEFA Women's Championships in 2009 and 2013. In a club career sometimes disrupted by injury, Margrét Lára represented ÍBV and Valur of the Icelandic Úrvalsdeild, Duisburg and Turbine Potsdam of the German Bundesliga, and Linköpings and Kristianstads DFF of the Swedish Damallsvenskan.