Prince Wilhelm of Wied (German: Wilhelm Friedrich Heinrich Prinz zu Wied, 26 March 1876 18 April 1945), reigned briefly as sovereign of the Principality of Albania as Vilhelm I from 7 March 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.

A prince is a male ruler (ranked below a king, grand prince, and grand duke) or a male member of a monarch's or former monarch's family. Prince is also a title of nobility (often highest), often hereditary, in some European states. The female equivalent is a princess. The English word derives, via the French word prince, from the Latin noun prīnceps, from primus (first) and caput (head), meaning "the first, foremost, the chief, most distinguished, noble ruler, prince".