San Diego FC defender Dagur Dan Þórhallsson is part of the squad for the 2026 MLS season. He was born in Hafnarfjörður, Iceland on 2 May 2000.
He began his senior career at Haukar in 2016, and he went on to play for Keflavík, Mjøndalen, Kvik Halden and Fylkir. He moved to San Diego FC in 2026.
Across 10 seasons of senior club football, beginning in 2016, Þórhallsson has played 246 matches and scored 29 goals for 9 clubs. His best scoring return came in 2022: 11 goals in 38 appearances for Breiðablik. His busiest campaign was 2024, with 42 appearances. So far in the 2026 season he has 2 goals in 16 appearances for CF Montréal and San Diego FC. The full season-by-season record is in the Stats section of this profile.