
Katrin Tanja Davidsdottir is an Icelandic CrossFit athlete known for her seven appearances at the CrossFit Games. She is the women's champion of the 2015 and 2016 CrossFit Games. Katrín is the second woman to repeat as champion, following in the footsteps of her countrywoman, Anníe Þórisdóttir.

Resurgence
2021

Fittest on Earth: A Decade of Fitness
2017

The Redeemed and the Dominant: Fittest on Earth
2018 · as Herself

The Fittest
2020 · as Herself

2018: The Ultimate Test
2021 · as Katrin Tanja Davidsdottir

Fittest on Earth: The Story of the 2015 Reebok CrossFit Games
2016 · as Herself

Reebok Crossfit Games: The Fittest on Earth 2014
2015 · as Herself