NameCensus.

UK girl's name

Isobelle

A feminine variation of Elizabeth, meaning "God is my oath" or "consecrated to God".

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Isobelle is a girl's name in the UK records. People looking for Isobelle popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #1406, with 23 babies registered with the name. Its strongest year in the published records was 2009, with 181 births.

This profile covers 2,574 England and Wales registrations across 29 recorded years from 1996 to 2024. The figures come from ONS England and Wales, NRS Scotland and NISRA Northern Ireland, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

The latest count is about 13% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 2,566 living people in the UK are called Isobelle. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2025 or 2026.

Key insights

  • Isobelle ranked #1406 for girls in England and Wales in 2024, with 23 registrations.
  • The name peaked in 2009, when 181 girls were registered as Isobelle.
  • Isobelle ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #451 in 2012.
  • About 2,566 living people in the UK are estimated to have Isobelle as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#1406

2024

Births in 2024

23

Latest year

Peak year

2009

181 births

Estimated living

2,566

2026

Meaning

What does Isobelle mean?

The name Isobelle originated from the French and Scottish cultures, deriving from the medieval French name Isabelle, which traces its roots back to the Hebrew name Elisheva. This Hebrew name Elisheva is made up of two components: 'El' meaning 'God' and 'shava' meaning 'oath' or 'covenant,' thus signifying 'God is my oath.'

The name Isobelle gained widespread popularity during the Middle Ages, particularly in France and Scotland. One of the earliest recorded uses of the name can be found in the 12th century, when Isabelle of Hainault, Queen consort of France, bore this name. She lived from around 1170 to 1190 and was married to King Philip II of France.

Another notable figure in history with the name Isobelle was Isabelle of Angoulême, who lived from around 1188 to 1246. She was the Queen consort of England as the wife of King John, and played a significant role in the political landscape of her time.

In the 14th century, Isabelle of Valois, Duchess of Bourbon, was a prominent figure who lived from around 1313 to 1383. She was the daughter of Charles of Valois and was known for her influential role in the French court.

Moving forward to the 16th century, Isobelle Becque, born in 1544, was a French botanist and horticulturist who made significant contributions to the study of plants and their cultivation.

In more recent history, Isobelle Griffiths, born in 1905 and died in 1999, was a British actress and singer who enjoyed a successful career in both theater and film. She is remembered for her performances in various Shakespearean plays and musicals.

While the name Isobelle has undergone various spellings over the centuries, such as Isabelle, Isabel, and Isobel, its essence and meaning have remained rooted in the idea of 'God is my oath,' reflecting its rich cultural and linguistic heritage.

Sourced from namecensus.com.

Popularity

Isobelle over time

The chart below shows babies named Isobelle registered in England and Wales in the years where the name appears in the published records, from 1996 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Isobelle, the clearest high point is 2009. The latest England and Wales figure is 23 births in 2024, compared with 181 at the peak.

Babies born per year

Isobelle
04591136181199620102024

Decades

Isobelle by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Isobelle was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #1137 158 5
2010s #547 957 10
2000s #334 1,245 10
1990s #513 214 4

Geography

Where Isobelle is most common

The bars show the latest published local birth counts for Isobelle. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.

Isobelle ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #451 in 2012.

Northern Ireland
3
Scotland
3

Across the UK

Isobelle in Scotland and Northern Ireland

Scotland (NRS)

#809 in 2018

1 years of NRS records, 3 total registered

Northern Ireland (NISRA)

#451 in 2012

1 years of NISRA records, 3 total registered

Notable bearers

Famous people named Isobelle

  • Isobelle Molloy

    actor; singer

    English child actress

    2000-

Related

Names similar to Isobelle

FAQ

Isobelle: questions and answers

How popular is the name Isobelle in the UK right now?

In 2024, Isobelle was ranked #1406 for girls in England and Wales, with 23 births registered.

When was Isobelle most popular?

The peak year on record was 2009, with 181 babies registered as Isobelle in England and Wales.

What is the meaning and origin of Isobelle?

A feminine variation of Elizabeth, meaning "God is my oath" or "consecrated to God".

How many people are called Isobelle in the UK?

A total of 2,574 babies have been registered as Isobelle across the 29 years of ONS England & Wales records shown here, plus 3 more in Scotland and 3 in Northern Ireland.

Where is Isobelle most common?

In the latest published local rankings, Isobelle ranks best in Northern Ireland, where it placed #451 in 2012. The regional bars on this page use birth counts, so they also reflect the size of each region.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.