Who is the world tallest guy?

Answer 1

Bao Xishun is the tallest man alive.

The tallest living person not recognized by Guinness is Leonid Stadnyk of the Ukraine, who turned 40 in 2011 and whose height is 8' 5.5" (257 cm). He refuses to be measured by the new standards that Guinness adopted in 2000, so Guinness took away his title and gave it to Bao Xishun of China, who held it until 2009.

According to Guinness, Sultan Kösen of Turkey, who turned 30 in 2012 and whose height is 8' 3" (251 cm), has been the tallest living person since September 17, 2009.

(The tallest person ever measured by Guinness was Robert Wadlow (1918-1940) of the United States. His height was 8' 11" (272 cm).)