Isobella

#15,832 in 2025Girls' name

My God is an oath, through Isabella

Isobella has been given to 243 babies in the U.S. since 1996. In 2025 it ranked #15,832 of 17,293 girls’ names in use. Its peak year was 2009, with 22 recorded.

Babies named Isobella, 2025

1 in 663,000

Isobella over time, 1880–2025

Girls

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Isobella: meaning, origin, and history

My God is an oath, through Isabella

Deeper origin not confirmed in the cited records

What Isobella means

Isobella belongs to the name family reached through Isobella → Isabella → Isabel. Its meaning is “my God is an oath”.

Origin, language, and formation

Isobella is used in English.

Related names and everyday forms

Related names include Isabella and Isabel.

American usage and historical context

In the United States, 243 girls were recorded with the name Isobella between 1996 and 2025. Its highest annual count was 22 in 2009; its best national rank was #6,184 in 2009.

Over 5 years its rank fell, from #14,118 in 2020 to #15,832 in 2025. Over 10 years its rank fell, from #12,271 in 2015 to #15,832 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Isobella?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025: 1 in 663,000; 5 of 3,315,165 births
Among girls only: 1 in 321,000; <0.01% of girls
Rank, 2025: #15,832; of 17,293 girls’ names in use
Coin-flip room size: 459,581 kids; Even odds of a second one

Where Isobella sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%

Class of 30Under 1%

Grade of 100Under 1%

School of 500Under 1%

Put another way: gather 459,581 children born in 2025 and it's an even bet that one of them is another Isobella. In a class of 30 the chance is Under 1%.

When Isobellas were born

Half of everyone ever recorded as Isobella was born before 2009 — so the typical Isobella is around 16 today.

Median birth year: 2009; About 16 years old
Biggest decade: 2000s; 44.4% of all use
Born in the last 25 years: 91.8%; A modern name
Recorded since 1950: 243; People you could plausibly meet

Choose a decade

2000s — 44.4% of all recorded uses (108).

Is Isobella rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago: +405; Places climbed
Rank vs 5 years ago: −1,714; Places dropped
Rank vs 10 years ago: −3,561; Places dropped
Births vs 10 years ago: 0.63×; Fewer babies than then
Share of its own peak: 22.7%; Peak was 2009 (22)
Years since peak: 16; Years
Year-to-year steadiness: Volatile; 36.2% average annual change
Best rank ever: #6,184; 2009

Spellings of Isobella

Isobella is not the most common spelling — Isabella is, with 70.2% against Isobella's 0.04%.

Isabella70.2%417,001
Isabelle18.1%107,762
Izabella5.2%31,149
Isabell2.6%15,274
Isabela2.1%12,698
Isobel0.64%3,802
Ysabella0.34%2,014
Issabella0.30%1,810

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Isobella around the world

Where Isobella ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

England & Wales
1996–2025
#1,719
in 2025
Scotland
2007–2025
#632
in 2025
Northern Ireland
2010–2022
#354
in 2022
Ireland
2001–2017
#873
in 2017
Canada
2007–2015
#2,823
in 2015
South Australia
1990–2012
#563
in 2012

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.

Isobella by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025: #15,832
Trend vs 5 yrs ago: Down 1,714
Best rank ever: #6,184; 2009
Peak year: 2009; 22 that year
First recorded: 1996
Last recorded: 2025
All-time count: 243
Count in 2025: 5

Names similar to Isobella

Matched on shared beginnings and endings, similar length, and comparable popularity.

Isobelle Azriella Adriella Samuella Israella Erabella Markella Kimbella Micaella Dariella Isolde Ezabella Carmilla Giabella Avabella Itzabella Ornella Karmella Astella Ariabella Emanuella Ayrabella Yzabella Arrabella

Sibling names for Isobella

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

For a sister

Abagail Shyann Halie Allyssa Sydni Sydnie Rhianna Alysa

For a brother

Aaden Kale Brennen Gavyn Jerimiah Jarod Keven Jamarcus

Explore around Isobella

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