Guglielmo (pronounced [ɡuʎˈʎɛlmo]) is the Italian form of the masculine name William. It may refer to: People with the given name Guglielmo: Guglielmo I Gonzaga (1538–1587), Duke of Mantua and Montferrat.
Guglielmo is baby boy name mainly popular in Christian religion and its main origin is . Guglielmo name meanings is From the Old Norman French Willaume. Other similar sounding names can be William.