
The 'Thor' of Iceland's midfield, his relentless work rate and versatile play made him an indispensable asset during their historic Euro 2016 and 2018 World Cup runs. Career record: club career at Viking FK, FC Basel, Aston Villa.
| 2006–2011 | Viking FK |
| 2008–2008 | FK Bodø/Glimt |
| 2012–2012 | Standard Liège |
| 2012–2013 | Delfino Pescara 1936 |
| 2012–2013 | Standard Liège |
| 2013–2014 | U.C. Sampdoria |
| 2014–2015 | Delfino Pescara 1936 |
| 2015–2017 | FC Basel |
| 2017–2019 | Aston Villa |
| 2019–2019 | Al-Arabi SC |
| 2020–2021 | Brescia Calcio |
| 2021–2023 | Adana Demirspor |
Iceland legends whose careers overlapped Bjarnason's
One rank above: Ríkharður Jónsson at #6.
One rank below: Ragnar Sigurðsson at #8.
Iceland's editorial top five: Eiður Guðjohnsen · Ásgeir Sigurvinsson · Gylfi Sigurðsson · Hermann Hreiðarsson · Aron Einar Gunnarsson.