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Home › Baby Names Directory › Isabeau

Isabeau

♀ Girl

Pronounced IZ-uh-boh /ˈɪz.ə.boʊ/Medium

Meaning: A medieval French form of Isabel (itself from Elizabeth, 'God is my oath; pledged to God'). Elegant and old-French, borne by Isabeau of Bavaria.Low

In 30 seconds: An elegant French Isabel: Isabeau means 'pledged to God' (said 'IZ-uh-boh'). Old-French and refined.
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Origin MediumFrench, Hebrew
MeaningA medieval French form of Isabel (itself from Elizabeth, 'God is my oath; pledged to God'). Elegant and old-French, borne by Isabeau of Bavaria.
U.S. rank (2025)#13866 ↘ Falling
2025 U.S. births6 girls (0.00% of U.S. girls)
Peak year2013
Total births (all-time)≈ 476

Popularity in the U.S. · SSA data

peak 201319872025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Isabeau is a medieval French variant of Isabel, tracing back to Elizabeth, 'God is my oath; pledged to God.' It carries a courtly, storybook charm — think Isabeau of Bavaria — rare in the U.S. (said 'IZ-uh-boh').

In the U.S. it appears rarely, treasured for its French elegance. Rare, refined, and storybook.

Did you know? Isabeau is a medieval French form of Isabel (from Elizabeth, 'God is my oath') — refined and old-French, borne by the queen Isabeau of Bavaria (said 'IZ-uh-boh').
Overall data confidence 50%
References — Isabeau — French form of Isabel/Elizabeth; 'pledged to God'

Variations

IsabelIsabelleIsobeau

Nicknames

IsaBeau

Famous Bearers

  • Famous bearers coming soon.

If you like Isabeau…

Isabel— the name it forms
Isabelle— a like French Isabel form
Heloise— a like storybook French pick
Isabell— a fellow Hebrew choice
Isobel— another classic pick

Explore names like Isabeau

By themeclassicfrenchelegantstorybook
By meaningGod / Divine

All themes →All meanings →All origins →

Frequently Asked

What does the name Isabeau mean?

Isabeau is a French form of Isabel (from Elizabeth), meaning 'God is my oath; pledged to God.'

How do you pronounce Isabeau?

It's said IZ-uh-boh /ˈɪz.ə.boʊ/ — three syllables, stress on the first.

Is Isabeau a boy or girl name?

Isabeau is a girl's name.

How popular is Isabeau?

Isabeau is a rare name in the U.S.

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