Dagur Dan Þorhallsson (born 2 May 2000) is an Icelandic football midfielder who plays for Fylkir, on loan from Mjondalen.
Growing up in Hafnarfjorður club Haukar, he made his senior debut there before spending time in Gent's youth section. He returned to Icelandic football and Keflavik IF in 2018, playing in the Urvalsdeild. In the first half of 2019 he was loaned to Mjondalen in Norway, and while only playing 1 league game and 4 cup games, he was bought by Mjondalen in the summer. Immediately loaned out for the rest of 2019 to Kvik Halden, he played more regularly for Mjondalen from June 2020.
Dagur Dan has been capped for Iceland on all age-specific levels from U16 to U21.
CSKA Moscow 
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Slovan Bratislava 
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