What does Guillemette mean?
Guillemette is an unusual first name for females but a very prominent last name for all people (#24061 out of 150436, Top 16%). (2000 U.S. Census)
Shown below is a comparison of the usage of the girl name Guillemette and affiliated names. Wilhelmina is the only popular variation form of Guillemette (#unlisted). Adoption of these girl names was at its highest during 1880-1889 (usage of 0.764%) and is now much lower, with Wilhelmina becoming less in vogue. (Top 1000 Birth Names Records, 2014)