Isabelle
A French and English form rooted in Latin, carrying the sense "god is my oath". It stays rare in Poland: most people here have never met an Isabelle, and every one on record is a woman.
Isabelle Pronunciation
Isabelle is pronounced ee-sah-BEL-le (/isaˈbɛllɛ/).
What Isabelle means
Where Isabelle comes from and what it has meant to the people who carry it.
Isabelle grew out of Elizabeth. Medieval speakers in France and Spain reshaped the Latin Elisabeth, dropping its first syllable and softening the rest until Isabelle emerged as a name of its own. The origin runs back through Latin to a Hebrew phrase meaning "God is my oath," in Polish "bóg jest moją przysięgą."
For centuries the name belonged to queens. Isabella of Castile signed the papers that sent Columbus west. In England the form settled as Isabel and Isabelle, favoured in French-speaking courts and later across ordinary parish records.
Polish keeps its own version, Izabela, with Iza and Bela as the diminutives a child actually answers to. On an imieniny card the long form looks formal; in a school register Iza is what the teacher calls out.
The oath in the name is old. Isabelle still means "God is my oath."
How many people are named Isabelle
1 in 45635 women in Poland is named Isabelle. 494 people carry it in the 2025 register: rank #1322 among female names.
Isabelle's popularity over time
3 girls were given the name in 2025, ranking #1255 among newborns. It is making a comeback after a low in 2018.
Where Isabelle is most popular
Isabelle is most popular in Masovian, 510% above the national average (2 girls born 2019–2025).
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Masovian2 girls born+510%
Isabelle as a middle name
Isabelle is a first name for 494 women in Poland and a middle name for another 296, a 63/37 split. In the women's middle-name ranking it sits 391st, between Josephine (301) and Prakseda (294).
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#389 Beatriz303
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#390 Josephine301
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#391 Isabelle296
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#392 Prakseda294
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#393 Naomi292