The girl's name Guillemine\gu(i)-llemi-ne, guill(e)-mine\ is a variant of Wilhelmina (Old German), and the meaning of Guillemine is "determined protector".
Guillemine is a very rare female first name and is not used as a surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the girl's name Guillemine. Compare Guillemine with related baby names.