The Mountain’s Better Half: 7 Shocking Facts About Hafþór Júlíus Björnsson’s Wife, Kelsey Henson

Few celebrity pairings capture the public imagination quite like that of Hafþór Júlíus Björnsson, the Icelandic strongman and actor known globally as "The Mountain," and his wife, Kelsey Henson. Their relationship is a modern-day fairytale, marked by a massive, yet endearing, physical difference that has made them an internet sensation. As of December 18, 2025, the couple continues to share their life, including the incredible highs of their professional careers and the deeply personal journey of their family life, which has recently included both joy and profound sorrow.

The interest surrounding Hafþór’s wife is immense, driven by her own successful career as a fitness influencer and the captivating story of how a 6’9” giant fell for a 5’2” Canadian waitress. This article dives deep into the life of Kelsey Henson, revealing the most up-to-date and intimate details of their marriage, their children, and the emotional challenges they have faced together.

Hafþór Júlíus Björnsson and Kelsey Henson: Complete Biography & Profile

The strength of their bond is evident in their public life, where they consistently support each other through strongman competitions, acting roles, and personal milestones. Here is a detailed look at the power couple's profiles.

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• Hafþór Júlíus Björnsson (Husband)
  • Nickname: "The Mountain" (from Game of Thrones), Thor
  • Date of Birth: November 26, 1988
  • Place of Birth: Reykjavík, Iceland
  • Height: 6 ft 9 in (206 cm)
  • Weight: Varies, typically 320–450 lbs (145–205 kg) during strongman peak
  • Occupation: Professional Strongman, Boxer, Actor (Gregor Clegane in Game of Thrones)
  • Notable Achievements: 2018 World's Strongest Man, 2018 World's Ultimate Strongman, 5-time Arnold Strongman Classic winner.
• Kelsey Morgan Henson (Wife)
  • Date of Birth: March 5, 1990
  • Place of Birth: Alberta, Canada
  • Height: 5 ft 2 in (157 cm)
  • Weight: Approximately 108 lbs (49 kg)
  • Occupation: Fitness Blogger, Model, Social Media Influencer, Former Waitress, Occupational Health & Safety Student.
  • Education: University of Alberta (Occupational Health & Safety)
  • Relationship Status: Married (since August 2018)

The Iconic 19-Inch Gap: How Kelsey and The Mountain Met

The most famous aspect of their relationship is, without a doubt, the staggering difference in their physical size. Hafþór stands at a towering 6 feet 9 inches, while Kelsey is 5 feet 2 inches, creating a 19-inch height gap that has led to countless viral photos and articles.

A Chance Meeting in Canada

The couple's love story began in September 2017 in Alberta, Canada.

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Hafþór was in town for a strongman competition and happened to visit a local restaurant where Kelsey Henson was working as a waitress.

Kelsey, a self-proclaimed fitness enthusiast, recognized the strongman and asked him for a photograph.

This simple request led to an instant connection, and they began dating shortly thereafter, quickly becoming inseparable.

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The Viral Height Difference

Their relationship quickly gained international attention due to the amusing and striking visual contrast. Kelsey often has to stand on her tiptoes or on a step to kiss her husband, a charming detail they often share on social media.

Hafþór has even joked about the difference, noting that Kelsey weighed only 46 kg (about 101 lbs) when they first met, which is a fraction of his competition weight.

Despite the physical difference, they share a deep mutual passion for fitness, health, and a very active lifestyle, which forms the foundation of their strong marriage.

Marriage, Children, and Their Emotional Family Journey

Hafþór and Kelsey tied the knot in a beautiful, private ceremony in Iceland in August 2018. The picturesque Icelandic landscape served as the backdrop for their intimate wedding, which they announced to the world with heartfelt posts on social media.

The Children of The Mountain and Kelsey

Hafþór is a father to three children, including two with Kelsey Henson.

1. Theresa Líf (Daughter from a previous relationship): Hafþór has a daughter from a prior relationship, who he often features in his family photos.

2. Stormur Magni Hafþórsson (Son): Kelsey and Hafþór welcomed their first child together, a healthy baby boy named Stormur Magni Hafþórsson, on September 26, 2020.

3. Grace Morgan Hafthorsdottir (Daughter): In a deeply emotional public announcement, the couple revealed the loss of their second child together. Their daughter, Grace Morgan Hafthorsdottir, was tragically stillborn on November 8, 2023, at 21 and a half weeks.

A Public Show of Strength and Vulnerability

The couple chose to share the heartbreaking news of Grace's stillbirth to honor their daughter and to help others navigating similar grief.

They have since publicly honored her memory, including getting matching tattoos with her name and birth date.

Their decision to be open about this painful experience has garnered them immense support from fans worldwide, showcasing their incredible emotional strength and vulnerability as a couple. This tragic event, while devastating, has only highlighted the depth of their commitment and love for one another and their family.

Kelsey Henson: More Than Just "The Mountain's Wife"

While her marriage brought her to global prominence, Kelsey Henson is a successful entity in her own right, building a career in the fitness and wellness space.

She is a dedicated fitness influencer and blogger, using her platform to promote a healthy and active lifestyle.

Kelsey’s career path is rooted in her education, having studied Occupational Health & Safety at the University of Alberta.

She is also an avid traveler, often accompanying Hafþór to his strongman and boxing events around the world, documenting their unique life together for her large social media following.

Her public persona is defined by her positive attitude, her dedication to her family, and her unwavering support for her husband's demanding career, making her a powerful and inspirational figure far beyond her celebrity marriage.