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Cassiel

#2,488 in 2025UnisexBoys' nameGirls' name

Possibly leap of God

Cassiel has been given to 543 babies in the U.S. since 2009. In 2025 it ranked #2,488 of 13,926 boys’ names in use. Its peak year was 2025, with 54 recorded. It's used for both sexes: 87% boys, 13% girls all-time.

Babies named Cassiel, 2025

1 in 61,400

Cassiel over time, 1880–2025

BoysGirls
020406018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Cassiel over time

In 2025, Cassiel went to 0% girls and 100% boys.

19992025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Cassiel: meaning, origin, and history

Possibly leap of God

Deeper origin not confirmed in the cited records

What Cassiel means

Cassiel may mean “leap of God”.

American usage and historical context

In the United States, 474 boys were recorded with the name Cassiel between 2009 and 2025. Its highest annual count was 54 in 2025; its best national rank was #2,488 in 2025.

Over 5 years its rank rose, from #4,295 in 2020 to #2,488 in 2025. Over 10 years its rank rose, from #4,093 in 2015 to #2,488 in 2025.

In the United States, 69 girls were recorded with the name Cassiel between 1999 and 2021. Its highest annual count was 10 in 2017; its best national rank was #10,111 in 2017.

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.

How common is Cassiel?

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

Among all babies, 2025
1 in 61,400
54 of 3,315,165 births
Among boys only
1 in 31,600
<0.01% of boys
Rank, 2025
#2,488
of 13,926 boys’ names in use
Coin-flip room size
42,555 kids
Even odds of a second one

Where Cassiel sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

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 42,555 children born in 2025 and it's an even bet that one of them is another Cassiel. In a class of 30 the chance is Under 1%.

When Cassiels were born

Half of everyone ever recorded as Cassiel was born before 2019 — so the typical Cassiel is around 6 today.

Median birth year
2019
About 6 years old
Biggest decade
2010s
53.6% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
474
People you could plausibly meet
Choose a decade

2010s — 53.6% of all recorded uses (254).

Is Cassiel 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
+1,220
Places climbed
Rank vs 5 years ago
+1,807
Places climbed
Rank vs 10 years ago
+1,605
Places climbed
Births vs 10 years ago
2.16×
More babies than then
Share of its own peak
100.0%
Peak was 2025 (54)
Years since peak
Peaking now
At its all-time high
Year-to-year steadiness
Volatile
39.0% average annual change
Best rank ever
#2,488
2025

Spellings of Cassiel

Cassiel is not the most common spelling — Cassius is, with 35.7% against Cassiel's 1.7%.

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.

Where Cassiel is used

Across 1910–2025, Cassiel was most concentrated in California — about 1 in — boys, against 1 in 571,311 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Florida1 in —
  3. 3Illinois1 in —
  4. 4New Jersey1 in —
  5. 5New York1 in —
  6. 6Texas1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Cassiel has too little recent state data to map, so this covers all years from 1910.

Cassiel around the world

Where Cassiel 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
    2011–2025
    #2,952
    in 2025
  • France
    1999–2025
    #4,056
    in 2025

Popularity data from Office for National Statistics and Institut national de la statistique et des études économiques. ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0.

Cassiel by the numbers

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

As a boy's name

Rank in 2025
#2,488
Trend vs 5 yrs ago
Up 1,807
Best rank ever
#2,488
2025
Peak year
2025
54 that year
First recorded
2009
Last recorded
2025
All-time count
474
Count in 2025
54

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#10,111
2017
Peak year
2017
10 that year
First recorded
1999
Last recorded
2021
All-time count
69
Count in 2025
Under 5

Names similar to Cassiel

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

CastielCashiusCaswellCashelCashtynCastonCasparCastorCastleCashmirCasmirCashmereYadrielJatnielDashielCashusJaazielJaasielZadkielCashtenMagdielSantielAzekielGrabiel

Sibling names for Cassiel

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

Explore around Cassiel

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