Gunnhildur Yrsa Jónsdóttir (born 28 September 1988) is an Icelandic professional footballer who plays as a midfielder for Halifax Tides FC of the Northern Super League.

[9] In January 2013, Gunnhildur was recruited by Norwegian Toppserien side Arna-Bjørnar to replace homegrown talisman Maren Mjelde following her transfer to Bundesliga team Turbine Potsdam.

[22] With the 2020 season cancelled due to the coronavirus pandemic, Gunnhildur made four appearances during the small schedule 2020 NWSL Challenge Cup replacement tournament.

[26] She joined Adelaide United alongside Iceland teammate Fanndís Fridriksdóttir and played every minute of the season, scoring one goal.

[28] On 30 January 2021, Gunnhildur was traded to Orlando Pride along with the playing rights to Erika Tymrak in exchange for Kristen Edmonds and the natural second-round pick in the 2022 NWSL Draft.

[29] On 24 January 2023, Orlando announced Gunnhildur would be departing the club to return to Iceland with wife and teammate Erin McLeod following their marriage earlier in the month.

[33] Gunnhildur made her senior international debut for Iceland on 26 October 2011 as an 89th-minute substitute in a 2–0 win over Northern Ireland during UEFA Women's Euro 2013 qualifying.

[38] Gunnhildur played all eight games of 2019 FIFA Women's World Cup qualification and scored four goals including her first career international brace in an 8–0 win against the Faroe Islands.

[40] Gunnhildur once again started every game during UEFA Women's Euro 2022 qualifying as Iceland finished second in the group to Sweden with six wins, a draw and a loss.

[42] Gunnhildur, also known as Gunny, has seven siblings: Tindur, Urður, Ilmur, Þórunn, Sigurður, Sæmundur, and Elfur; her parents are Laufey Sigurðardóttir and Jón Saemundsson.

[citation needed] In October 2020, it was made public that Gunnhildur is in a relationship with Canadian national team player Erin McLeod.