List of Famous people named Guglielmo

Guglielmo Giovanni Maria Marconi, 1st Marquis of Marconi was an Italian inventor and electrical engineer, known for his pioneering work on long-distance radio transmission, development of Marconi's law, and a radio telegraph system. He is credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

Guglielmo Epifani is an Italian trade unionist and politician. From 2002 to 2010 he was the General Secretary of the Italian General Confederation of Labour (CGIL), the biggest trade union in Europe. On 11 May 2013 Epifani was appointed Secretary of the Democratic Party (PD).

Guglielmo Gonzaga was Duke of Mantua from 1550 to 1587, and of Montferrat from 1574 to 1587. He was the second son of Federico II Gonzaga, Duke of Mantua and Margaret Palaeologina of Montferrat. In 1574, Montferrat was elevated to a Duchy and Guglielmo became its first duke. He was succeeded as Duke of both duchies by his son Vincenzo.

Guglielmo della Scala was the son of Cangrande II della Scala. He assassinated his father in 1359, but was edged out of power by his uncle Cansignorio.

Guglielmo Embriaco, was a Genoese merchant and military leader who came to the assistance of the Crusader States in the aftermath of the First Crusade. Embriaco is considered one of the founders of what would become the Republic of Genoa.

Guglielmo Borghetti is an Italian ordinary of the Catholic Church and the current Bishop of Albenga-Imperia. He is the former Bishop of Pitigliano-Sovana-Orbetello.