Last updated on: July 30, 2025
Kelsey Henson is a Canadian fitness coach. She is also a safety officer and a social media influencer. Many recognize her as the wife of Hafthor Bjornsson, who acted as The Mountain on Game of Thrones.
Kelsey was born on March 5, 1990, in Alberta, Canada. She was brought up there and then went on to study at the University of Alberta. She graduated in Occupational Health and Safety.
Quick Facts About Kelsey Henson
| Full Name | Kelsey Morgan Henson |
| Birthdate | March 5, 1990 |
| Age | 35 years and 9 months old |
| Occupation | Fitness Trainer, Safety Officer, Social Media Influencer |
| Husband | Hafthor Júlíus Björnsson |
| Education | Occupational Health & Safety, University of Alberta |
| Parents | Not known |
| Height | 1.57 m |
| Children | Stormur Magni Hafthórsson (son), Grace Morgan (stillborn daughter) |
| Net Worth | $1 million million (as of 2025) |
Career and Work Life
Prior to transitioning into the fitness industry, Kelsey had a career in construction. She was a Health and Safety Administrator and a National Construction Safety Officer.
She became more health- and fitness-conscious over the years. She is currently a trainer at Thor’s Power Gym in Iceland. She owns the gym along with Hafthor.
She also posts workout videos and advice on the internet. She posts on Instagram about fitness, family, and health. She also advertises workout supplements and living healthily.
How She Met Hafthor
Kelsey was serving as a waiter in an Alberta restaurant in 2017. One day, Hafthor entered her place of work. She requested a photograph of him. That simple exchange brought about more conversations and later ended up in a relationship.
The two married in October 2018 in Iceland. They reside there today and frequently post photographs of their life on social media.
Family and Children
Kelsey and Hafthor are close. They have shared joy as well as pain together.
They welcomed their first child, a boy named Stormur Magni Hafthórsson, in 2020. In 2023, they tragically lost their baby girl, Grace Morgan, who was stillborn.
Hafthor also shares a daughter by another relationship named Theresa Líf.
Kelsey frequently shares about her family, both joyous and tearful moments. She also has a second Instagram account named @uncensoredmommy, in which she discusses motherhood and recovery.
Kelsey’s Appearance and Personality
Kelsey is around 5 feet 2 inches tall. Hafthor measures 6 feet 9 inches, hence the height difference often catches others off guard. Kelsey has blonde hair, blue eyes, and some tattoos.
She is playful about being short compared to Hafthor and tells humorous anecdotes. The pair is extremely honest and truthful with their audience.
READ ALSO: Hafthor Bjornsson Net worth, Age, Wife, Family, Facts & More
Life Away from Work
Kelsey loves traveling and discovering new locations. She is English-speaking and also has some knowledge of French. She has a BMW M5 and enjoys driving it.
Even while in the limelight, Kelsey remains humble. She keeps things real and simple on social media. Numerous followers are drawn to her because of fitness advice as well as her candid opinion about family life.
