Guillem (Catalan pronunciation: [ɡiˈʎɛm]) is a Catalan first name, equivalent to William in the English language, which occasionally can appear as a surname. Its origin and pronunciation are the same as its Occitan variant Guilhèm, with a different spelling.
Guillem is baby boy name mainly popular in Christian religion and its main origin is . Guillem name meanings is From the Old Norman French Willaume. Other similar sounding names can be William.