According to Guinness World Records, Sultan Kosen (born December 10, 1982) is the tallest living human reaching an average height of 8'3' (251.4 cm) when measured by Guinness World Records in Ankara, Turkey on 8 February 2011.

Sultan Kosen is the tallest living human only but if we talk about the tallest human for all times then the record goes to Robert Pershing Wadlow. He took this record from Bao Xishun who stands 236 cm (7 ft 9 in) tall. Sultan Kosen is also the current Guinness World Record holder of largest hands and largest feet, measuring 27.5 cm and 36.5 cm respectively. Kösen lives with his parents, three brothers and sister. They all are of typical height. He works part time as a farmer as he was unable to complete his education because of his height.

Sultan Kosen is one of only twelve individuals in medical history to be confirmed at a height of eight feet or more. He claims to enjoy a normal lifestyle despite his height and enjoys playing computer games with his friends. He describes the advantages of being tall as being able to help his family with domestic jobs such as changing light bulbs and hanging curtains and seeing from great distance. But he faces a hard time finding clothes or shoes that fit as his legs measures 49.5 inches and his sleeve length is 38 inches. He find it extremely hard to fit into a regularly sized car

Kosen married Merve Dibo in october 2013. She is ten years junior to kosen. In an interview, kosen said that the biggest problem between him and his wife is communication. That is not because of his height but the fact is his wife speaks only arabic and he only knows kurdish and turkish.

His growth has resulted from a tumour affecting his pituitary gland. His stature is such that he must use crutches in order to walk.

Kosen has undergone Gamma Knife treatment for his pituitary tumour at the University of Virginia Medical School and has also been provided with medication to control his excessive levels of growth hormone. Although the full effect of the treatment takes up to two years, as of 2011, his hormone levels were almost normal.

Kösen met, the world's shortest living man, Chandra Bahadur Dangi, for the first time at an event in London on 13 November 2014 as part of Guinness World Records Day. Sultan recently joined the Magic Circus of Samoa after he has been personally approached by the director of the circus, Bruno Loyale, who convinced him to join the circus. and participates in various shows around the world.