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Isabeau

Girl name · French · Spanish

Meaningpledged to God · French form of Isabel

US rank
#13,208
Syllables
4
Peak
#5,315 in 2018

6 babies were named Isabeau in the US in 2025. It has dropped 4,255 places in five years.

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US births per million girls, 1987–2025

07.515198720002025

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Popularity: U.S. Social Security Administration (babies with 5+ births per year).

Did you know?

A few things about Isabeau you might not know, from US birth records. Handy for convincing a partner, or a grandparent.

  • How commonAbout 1 in every 270,270 baby girls born in the US in 2025 was named Isabeau, 6 babies in all. In a typical school of 500 kids, your Isabeau would very likely be the only one.
  • HistoryIsabeau first shows up in US birth records in 1987, the first year at least 5 babies got it. It has been in use for 38 years since.
  • Best yearIts best year was 2018, when it reached #5,315.
  • Then vs nowIsabeau was 2.7× more common in 2000 than it is today. In 2000 it was given to about 1 in 101,010 baby girls; in 2025, about 1 in 270,270.
  • TrendIsabeau has slipped 4,255 places over the last five years and now sits at #13,208. Good news if you want a familiar name that fewer kids will share.
  • MeaningIsabeau is a French form of Isabel, which means “pledged to God”. Our records link it to French and Spanish roots.

About the name Isabeau

Isabeau is a girl name of French and Spanish origin meaning “pledged to God”. It has 7 letters and 4 syllables, starting with I and ending in “-eau”. US birth records list Isabeau for girls from 1987 to 2025, in 39 of those 39 years. Its best year was 2018, when it ranked #5,315 among girl names. In 2025 it ranked #13,208, with 6 babies.

Origin:French namesSpanish names

Isabeau for girls, by decade
DecadeBabies per millionAbout 1 in
1980s3.0333,333 girls
1990s6.0166,945 girls
2000s7.0143,062 girls
2010s9.6103,734 girls
2020s5.6177,515 girls

More French girl names

Questions about the name Isabeau

What does the name Isabeau mean?

Isabeau means “pledged to God” in French, as a form of Isabel.

What is the origin of the name Isabeau?

Isabeau has French, Spanish roots in our records. Other French names include Charlotte, Evelyn, Violet.

Is Isabeau a boy or girl name?

Isabeau is a girl name.

How popular is the name Isabeau?

Isabeau ranked #13,208 for US girls in 2025, given to 6 babies. Its best year was 2018 (#5,315).