The tallest man living is Sultan Kösen (Turkey, b.10 December 1982) who measured 251 cm (8 ft 3 in) in Ankara, Turkey, on 08 February 2011. The part-time farmer was the first man over 8 ft (2.43 m) to be measured by Guinness World Records in over 20 years.
Indeed, GWR only knows of 10 confirmed or reliable cases in history of humans reaching 8 ft or more.
Sultan first became the world’s tallest living man in 2009, when he measured 246.5 cm (8 ft 1 in) in height. He took the title from Xi Shun (China, b. 1951), who measured 2.361 m (7 ft 8.95 in) in height when measured in 2005.