The athlete known for breaking the long jump world record is Bob Beamon. He achieved this tremendous feat during the 1968 Olympic Games in Mexico City, where he jumped an astonishing distance of 8.90 meters (29 feet, 2 ½ inches). Beamon's performance not only set a new world record but also revolutionized the sport, leaving an indelible mark on athletics history. His jump stood unmatched for almost 23 years, symbolizing exceptional talent and athleticism and inspiring generations of jumpers.