What does Isabeau mean?
Isabeau /is-abeau/ as a name for girls. Isabeau's name origin is Hebrew, and the meaning of Isabeau is "God is my oath". Isabeau is a version, with the suffix -u, of Isabel (Hebrew): Spanish form of Elizabeth.
Isabeau has 1 variant: Ysabeau.more]
How popular is Isabeau?
Isabeau is an uncommonly occurring first name for women. Isabeau is an unusual last name too for all people. (2000 U.S. Census)
Popular related forms of Isabeau (outside Top 1000) listed in the Top 1000 are Isabella (#4 from recent data), Isabelle (#96), Isabel (#144), Isabela (#717), Isobel and Isabell. These relations of Isabeau were at the height of their popularity in 2006 (adoption of 0.606%) and are somewhat less widespread today (adoption 0.507%, ▼16%), with the form Isabell becoming less in vogue. Isabel is more familiar than the rest, though Isabella is now the most fashionable. Displayed below is a comparison of the usage of Isabeau and corresponding names. (2014 Birth Statistics)