Katrín holds a master’s degree in Icelandic literature from the University of Iceland (2004). She has had a long and successful career in politics, having held numerous positions and served on countless boards and committees of various public institutions and organizations, both in Iceland and internationally. In addition, Katrín is an accomplished author and has occasionally taught at various educational levels.

• Member of the Student Council and the University Council of the University of Iceland, 1998–2000
• Chair of the Young Left-Greens, 2002–2003
• Deputy City Councillor for the Reykjavík List, 2002–2006
• Member of Parliament for the Left-Green Movement, 2007–2024
• Deputy Chair of the Left-Green Movement, 2003–2013, and Chair, 2013–2024
• Minister of Education, Science and Culture, 2009–2013
• Prime Minister, 2017–2024