Guillelmine is a French feminine given name. It is pronounced as [ɡijɛlmin] in IPA phonetic transcription. The first syllable "gui" is pronounced as "gi" with a hard "g" sound like in "gift". The second syllable "lle" is pronounced as "ye" like in "yes". The third syllable "mi" is pronounced as "min" with a nasal "n" sound. The final syllable "ne" is pronounced as "n" with a silent "e" at the end.