Hafþór Júlíus Björnsson (born 26 November 1988)

Hafþór Júlíus Björnsson is an Icelandic professional strongman and actor. 

He is the first person to have won the Arnold Strongman Classic, Europe's Strongest Man and World's Strongest Man in the same calendar year.

He played Gregor "The Mountain" Clegane in the HBO series Game of Thrones for five seasons.

He also is a former professional basketball player.

Born in Reykjavík, Hafþór began his basketball career in 2004 with Division I team Breiðablik, moving to FSu in 2005.

Hafþór won the Strongest Man in Iceland event in 2010, and Iceland's Strongest Man in 2011.

He won Europe's Strongest Man in 2014, a feat he repeated in 2015, 2017, 2018, and 2019.

He won gold at the Arnold Strongman Classic in 2018, 2019 and 2020. He first competed in the World's Strongest Man in 2011, placing sixth.

He won three bronze and three silver medals in his next six attempts before being crowned champion in 2018.

On 2 May 2020, Hafþór deadlifted a record-setting 501 kilograms (1,105 lb) under strongman rules, wearing a deadlift suit and straps.