The 55-year-old Hallgrimsson, who is also a dentist, was most recently head coach at Qatari League Club Al Arabi from 2018 to 2021.
Before then, he was then man at the helm for his native Iceland from 2013-2018. His biggest achievement was leading Iceland to the quarterfinals at Euro 2016 in France, including a 2-1 win over England in the Round of 16.
Hallgrimsson also led Iceland to their first ever FIFA World Cup appearance in 2018 in Russia.
He will take over from former interim head coach Paul Hall who had a record of two wins, three draws and five losses in 10 games since his appointment in December 2021.
