Wim Hof (pronounced [ʋɪm ˈɦɔf]; born 20 April 1959), also known as The Iceman, is a Dutch motivational speaker and extreme athlete noted for his ability to withstand low temperatures.

He attributes these feats to his Wim Hof Method (WHM), a combination of frequent cold exposure, breathing techniques and meditation.

[8] Wim Hof's method seems to be inspired by thousands-year-old technique where the Indian Saints used to practice Yoga and Meditation in the Himalayas under extreme cold weather.

"[10] Wim's identical twin brother Andre has a similar tolerance for cold, despite living a different lifestyle, suggesting that much if not all of Hof's abilities are innate.

[25] The fastest half-marathon run while barefoot on ice or snow is 2 hr 16 min 34 sec by Hof near Oulu, Finland, on 26 January 2007.

Done for the Discovery Channel program Real Super-humans and the Quest for the Future Fantastic, this is the only current Guinness record in Hof's name.

[26] On 16 March 2000, Hof set the Guinness World Record for farthest swim under ice on his second attempt, with a distance of 57.5 metres (188.6 feet).

[31] In 2007, Hof climbed to an altitude of 7,400 metres (24,300 ft) on Mount Everest wearing nothing but shorts and shoes, but aborted the attempt due to a recurring foot injury.

He managed to climb from base camp to about 6,700 metres (22,000 ft) wearing just shorts and sandals, but after that he wore boots, saying he needed to affix crampons at that point.

[32] In 2016, Hof reached Gilman's Point on Mount Kilimanjaro with journalist Scott Carney in 28 hours, an event later documented in the book What Doesn't Kill Us.

[35] Hof met his first wife Marivelle-Maria, also called "Olaya Rosino Fernandez", in the Vondelpark in Amsterdam in the garden of roses.