William Henry Smith, 5th Viscount Hambleden (born 18 November 1955) is a British peer, and descendant of the founders of the stationery group WH Smith.
Through his paternal grandmother, he is a descendant of the Earls of Pembroke and the Vorontsov family.
[1] He succeeded to the title of Viscount Hambleden in 2012 upon the death of his father.
He separated from his wife in 2003 and returned to Hambleden, Buckinghamshire, England.
[2] He is in a relationship with singer Anni-Frid Lyngstad of ABBA, a Norwegian-Swedish princess and countess by marriage to Heinrich Reuss who died in 1999.