Jigme Singye Wangchuck (born 11 November 1955) is the former King of Bhutan. He was the fourth Dragon King (Druk Gyalpo) of Bhutan from 1972 until his abdication in favour of his eldest son, Jigme Khesar Namgyel Wangchuck, in 2006. He is credited with many modern reforms in the country.