Who Is Hafþór Júlíus Björnsson? Age, Biography, and Wiki
Hafþór Júlíus Björnsson, born on November 26, 1988, in Reykjavik, Iceland, is renowned as a professional strongman and actor, most famously known for portraying "The Mountain" on HBO's hit series Game of Thrones. As of 2025, Hafþór is 37 years old. He has garnered global fame not only for his towering height and immense strength but also for his charismatic personality and versatility in various domains, including sports and entertainment.
| Occupation | Basketball Players |
|---|---|
| Date of Birth | November 26, 1988 |
| Age | 36 Years |
| Birth Place | Reykjavík, Iceland |
| Horoscope | Sagittarius |
| Country | Iceland |
Popularity
Hafþór Júlíus Björnsson's Popularity over time
Height, Weight & Measurements
Standing at an impressive height of 6 feet 9 inches (206 cm) and weighing approximately 450 pounds (204 kg), Hafþór Júlíus Björnsson's body stats are nothing short of astonishing. His measurements reflect his dedication to strength training and athletic pursuits, showcasing a physique that is the result of rigorous discipline.
The following year, while training at the "Strongman Base" gym, Hafþór was nicknamed Ljónið (the Lion) by Stefán Sölvi Pétursson, because he continuously grew bigger and got stronger, eventually reaching his heaviest body weight ever, of 210 kg, in 2012.
Family, Dating & Relationship Status
Hafþór is married to Kelsey Henson, whom he tied the knot with in 2018. Kelsey often appears in his social media posts, and together they share a warm bond that highlights their love for travel, fitness, and family life. The couple welcomed their first child, a son named Thor, contributing to their growing family. As of 2025, Hafþór’s relationship status remains happily married to Kelsey, reaffirming their commitment as partners in both life and fitness.
A lanky teenager, Hafþór gained size and strength through daily exercise, combining basic movements (push-ups, chin-ups, and sit-ups) with working at his grandfather's farm during summers and lifting natural stones in the wilderness.
His imposing height of 205 cm is credited to his 203 cm father, Björn Þor Reynisson, and his mother, Ragnheiður Juliusdottir, who is also of tall stature. Hafþór's grandfather Reynir Ásgeirsson is also very tall and just as broad across the chest. Hafþór has two sisters: Bryndís Björg Björnsdóttir and Hafdís Lind Björnsdóttir.
Net Worth and Salary
As of 2025, Hafþór Júlíus Björnsson's net worth is estimated to be around $2 million. His earnings stem from a combination of his strongman competitions, acting roles, brand endorsements, and various business ventures. Björnsson has evolved from being a competitive strongman into a successful entrepreneur, engaging in endorsements and partnerships with fitness brands, contributing significantly to his financial growth.
Career, Business, and Investments
Hafþór Júlíus Björnsson's career has seen remarkable transformations. Originally a professional basketball player, he transitioned to the world of strongman competitions, where he has achieved notable success, including winning the World's Strongest Man title in 2018.
In addition to his athletic career, Hafþór has leveraged his fame into various business ventures, including fitness training programs and merchandise sales. His investments in the health and fitness industry have solidified his position as a business-savvy individual in the realm of sports.
Hafþór began his athletic career as a basketball player, playing as a center with a bodyweight of around 105 kg. He started his senior team career for the Icelandic 1. deild karla club Breiðablik in 2004.
The following season, he transferred to FSu Selfoss, but after about ten games, it was discovered that he had been playing with a broken bone in his ankle and required surgery. After recovering, in 2006, Hafþór moved to KR in the Icelandic top-tier Úrvalsdeild.
However, after a screw in his ankle shattered, he had to undergo a second surgery in November, forcing him to miss the rest of the season.
Social Network
Hafþór is active on various social media platforms where he shares aspects of his life, fitness tips, and behind-the-scenes moments from his acting career. With millions of followers on Instagram, Facebook, and Twitter, he engages with fans worldwide. His content often includes training videos, personal milestones, and family moments, allowing his followers to connect with him on a personal level.
After recovering from the ankle injury, and inspired by Ronnie Coleman and Dorian Yates, Hafþór trained like a bodybuilder.
One day, when four-time World's Strongest Man champion Magnús Ver Magnússon spotted the twenty-year-old, 6 ft 9 in, 140 kg Hafþór deadlifting in his gym, "Jakaból", he immediately realized his potential as a good prospect for strongman, which paved the way for Hafþór to train with Stefán Sölvi Pétursson, Benedikt Magnússon, Páll Logason
, and Ari Gunnarsson.
Education
Hafþór Júlíus Björnsson attended the Icelandic College of Sport, where he honed his skills in athletics and physical training. His education laid the foundation for his fierce dedication to fitness and performance, enabling him to become the strongman he is today.
In conclusion, Hafþór Júlíus Björnsson continues to inspire fans and fitness enthusiasts alike in 2025 with his remarkable journey from strongman to actor and entrepreneur. His life story is a testament to resilience, dedication, and the pursuit of excellence in both personal and professional arenas.
When he was eleven years old, his family moved to Kópavogur. He received his primary education at Grundaskóli and then Hjallaskóli hill school, but due to high levels of energy as a child, he had difficulty sitting in a classroom or concentrating on his studies.
As a student at the polytechnic school in Breiðholt, he was enthusiastic about sports and played soccer and did gymnastics, before discovering his passion for basketball in eighth grade. He was also a chess player, with a Blitz rating of 800. He also loved playing video games.
