Guillermo
| Gender | Male |
|---|---|
| Language(s) | Spanish |
| Origin | |
| Meaning | "Vehement protector" |
| Region of origin | England |
| Other names | |
| Related names | William, Guillaume, Wilhelm, Guilherme |
Guillermo (Spanish pronunciation: [ɡiˈʎeɾmo]) is the Spanish form of the male given name William. The name is also commonly shortened to 'Guille' or, in Latin America, to nickname 'Memo'.