Prince William of Wied, Prince of Albania (German: Wilhelm Friedrich Heinrich; Albanian: Princ Vidi or Princ Vilhelm Vidi; 26 March 1876 – 18 April 1945), reigned briefly as sovereign of the Principality of Albania as Vidi I from 7 March 1914 to 3 September 1914, when he left for exile. His reign officially came to an end on 31 January 1925, when the country was declared an Albanian Republic.

Outside the country and in diplomatic correspondence, he was styled "sovereign prince", but in Albania he was referred to as mbret, or king. He was also styled Skanderbeg II, in homage to Skanderbeg, the national hero.

William was born on 26 March 1876 in Neuwied Castle, near Koblenz, in the Prussian Rhineland, as Prince William of Wied (German: Wilhelm Friedrich Heinrich Prinz zu Wied). Born into the mediatised house of Wied-Neuwied, he was the third son of William, 5th Prince of Wied (brother of Queen Elisabeth of Romania), and his wife Princess Marie of the Netherlands (sister of Queen Louise of Sweden).

His paternal grandparents were Hermann, Prince of Wied, and Princess Marie of Nassau. Marie was a daughter of William, Duke of Nassau, and his first wife Princess Louise of Saxe-Hildburghausen, the daughter of Frederick, Duke of Saxe-Altenburg, and Duchess Charlotte Georgine of Mecklenburg-Strelitz.

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