World records for the longest hair refer to the officially recognised measurements of individuals with the most extensive hair growth. For instance, Xie Qiuping from China holds the Guinness World Record for the longest hair on a living female, measuring an astounding 5.627 meters (18 feet 5.54 inches) in 2004.
These records are significant as they showcase human diversity, extreme physiological capabilities, and provide insights into hair growth and genetics. Historically, long hair has held cultural and religious significance in various societies, symbolising beauty, power, and spirituality.