Last updated on: July 30, 2025
Bjorn Thor Reynisson is the dad of Hafthor Júlíus Björnsson, a renowned Icelandic strongman and actor. Hafthor is well known as The Mountain of Game of Thrones. However, there are not many familiar with Hafthor’s father, Bjorn.
Bjorn is a big and powerful man. He’s roughly 6 feet 8 inches. That’s just an inch shorter than Hafthor, who measures 6 feet 9 inches. Folks figure that Hafthor inherited his massive stature and power from his family — and Bjorn is part of that.
Quick Facts About Bjorn Thor Reynisson
| Full Name | Bjorn Thor Reynisson |
| Birthdate | 1950 |
| Age | 76 years old |
| Occupation | N/A |
| Husband/Wife | Ragnheiður Margret Juliusdottir (divorced) |
| Education | N/A |
| Parents | Not Known |
| Grandchildren | Theresa Líf, Stormur Magni Hafthorson, Grace Morgan Hafþórsdóttir |
| Children | Hafthor Julius Bjornsson (Son), Hafdis Lind Björnsdóttir, Bryndís Björg Björnsdóttir (Daughters) |
| Net Worth | <$1 million |
| Nationality | Icelandic |
A Tall and Strong Family
Bjorn was wedded to Ragnheiður Margret Juliusdottir, Hafthor’s mother. She is equally very tall — around 6 feet 9½ inches. Hafthor’s grandfather, Reynir Ásgeirsson, was likewise tall and wide.
So it’s certain that Hafthor’s large size is inherited. These robust family genes contributed to making him one of the strongest men in the world.
What We Know About Bjorn
Bjorn Thor Reynisson leads a reclusive life. He does not frequently appear before the public. He does not make many TV appearances or interviews. We know most about him through what Hafthor has revealed.
We do not know that Bjorn is tall and was previously engaged in strength sports. Some believe that he wrestled or prepared in other strength competitions when he was young. But there is no public record of his career or work.
Despite the fact that he keeps a low profile, Bjorn is significant in Hafthor’s life. He contributed to the development of the strong, solid man his son turned out to be.
The Family Tree
Bjorn and Ragnheiður had three children:
Hafthor Júlíus Björnsson – the strongman and actor
Hafdís Lind Björnsdóttir – Hafthor’s sister
Bryndís Björg Björnsdóttir – another sister
Bjorn is also a grandfather now. Hafthor has:
A daughter named Theresa Líf from a previous relationship
A son, Stormur Magni Hafthorson, born on September 26, 2020, with his wife Kelsey Henson
A daughter, Grace Morgan Hafþórsdóttir, who sadly was stillborn
READ ALSO: Hafthor Bjornsson Net worth, Age, Wife, Family, Facts & More
A Quiet Life, A Big Impact
Bjorn does not utter a word too much in public, but his influence remains big. His strength and height are a considerable factor in Hafthor’s success. His influence enabled a tight family to be built.
Even Hafthor has mentioned that his grandfather Reynir and his family were close to each other. That speaks volumes about the family respecting support and love. Bjorn must have been a part of that.
