Dan Osman (February 11, 1963 – November 23, 1998) was an American extreme sport practitioner, known for the dangerous sports of “free-soloing” (rock climbing without ropes or other safety gear); and “rope jumping” (controlled free-falling) (falling several hundred feet from a cliff then being caught by a safety rope), for which his record was over 1000 feet / 304,8 meters. He was known for living a bohemian lifestyle, rarely working, and living in a tree house for months at a time. He was the star of several rock climbing videos, which brought free-soloing to a wider audience. He had one daughter.

Tragically he died on November 23, 1998 at the age of 35 after his rope failed while performing a “controlled free-fall” jump from the Leaning Tower rock formation in Yosemite National Park.