Tallest teenager ever (male)

Tallest teenager ever (male)
Who
Robert Wadlow
What
2.45 centimetre(s)
Where
United States ()
When
1935

The tallest male under the age of 18 years ever recorded was Robert Wadlow (USA, 1918–1940), whose height at the age of 17 was 2.45 m (8 ft 0.5 in).