Guglielmo

Guglielmo is an Italian masculine given name. It is the Italian form of William, itself derived from the Old High German Wilhelm, from the elements wil meaning will or desire and helm meaning helmet or protection. The name spread through Europe in the Middle Ages and was adopted into Italian usage as Guglielmo.

In Italy, Guglielmo has been borne by various historical and literary figures, and it remains a recognizable traditional name, though less common among younger generations. The feminine form of the name is Guglielmina. In other languages, related forms include Guillaume (French), Wilhelm (German), Guillermo (Spanish), and Guilherme (Portuguese). In Italian literature and translations, prominent references include the rendering of the legendary William Tell as Guglielmo Tell.

Notable people with the name include Guglielmo Marconi (1874–1937), the Italian inventor and pioneer of long-distance radio transmission, awarded the Nobel Prize in Physics in 1909 for his work on wireless telegraphy. The name also appears in cultural contexts, such as translations of foreign titles or legends where William Tell is rendered as Guglielmo Tell. Overall, Guglielmo is recognized as a traditional Italian given name rooted in a pan-European heritage, with occasional use in contemporary naming.