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Cassian

#479 in 2025Boys' name

From Latin Cassianus; literal meaning unconfirmed

Cassian has been given to 2,907 babies in the U.S. since 1997. In 2025 it ranked #479 of 13,926 boys’ names in use. Its peak year was 2025, with 633 recorded.

Babies named Cassian, 2025

1 in 5,240

Cassian over time, 1880–2025

BoysGirls
020040060080018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Cassian: meaning, origin, and history

From Latin Cassianus; literal meaning unconfirmed

Latin

What Cassian means

Cassian is a given name.

Dictionary etymologyReferences, data & attribution

From Latin Cassianus, derivative of Cassius. Name of early saints.

Excerpt from Wiktionary: Cassian (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Cassian is used in English. Its origins include Latin.

Cassian comes through Latin Cassianus.

Pronunciation and spelling

In English, Cassian is pronounced /ˈkæsi.ən/.

American usage and historical context

In the United States, 2,893 boys were recorded with the name Cassian between 1997 and 2025. Its highest annual count was 633 in 2025; its best national rank was #479 in 2025.

Over 5 years its rank rose, from #1,036 in 2020 to #479 in 2025. Over 10 years its rank rose, from #4,913 in 2015 to #479 in 2025.

In the United States, 14 girls were recorded with the name Cassian between 2017 and 2023. Its highest annual count was 9 in 2023; its best national rank was #10,479 in 2023.

How common is Cassian?

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

Among all babies, 2025
1 in 5,240
633 of 3,315,165 births
Among boys only
1 in 2,700
0.04% of boys
Rank, 2025
#479
of 13,926 boys’ names in use
Coin-flip room size
3,631 kids
Even odds of a second one

Where Cassian 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 1002%
School of 5009%

Put another way: gather 3,631 children born in 2025 and it's an even bet that one of them is another Cassian. In a class of 30 the chance is Under 1%.

When Cassians were born

Half of everyone ever recorded as Cassian was born before 2023 — so the typical Cassian is around 2 today.

Median birth year
2023
About 2 years old
Biggest decade
2020s
80.3% of all use
Born in the last 25 years
99.8%
A modern name
Recorded since 1950
2,893
People you could plausibly meet
Choose a decade

2020s — 80.3% of all recorded uses (2,324).

Is Cassian 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
+138
Places climbed
Rank vs 5 years ago
+557
Places climbed
Rank vs 10 years ago
+4,434
Places climbed
Births vs 10 years ago
33.32×
More babies than then
Share of its own peak
100.0%
Peak was 2025 (633)
Years since peak
Peaking now
At its all-time high
Year-to-year steadiness
Volatile
64.3% average annual change
Best rank ever
#479
2025

Spellings of Cassian

Cassian is not the most common spelling — Hassan is, with 32.3% against Cassian's 7.6%.

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 Cassian is used

Across 2016–2025, Cassian was most concentrated in Oregon — about 1 in 3,704 boys, against 1 in 6,483 across all states with data. It was least common in Mississippi (1 in 25,000).

427 per 100,000

Most concentrated

  1. 1Oregon1 in 3,704
  2. 2Washington1 in 4,000
  3. 3California1 in 4,348
  4. 4Colorado1 in 4,348
  5. 5Utah1 in 4,348
  6. 6Nevada1 in 4,762
  7. 7Alaska1 in 5,263
  8. 8Arizona1 in 5,263

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.

Geographically, Cassian is used remarkably evenly across the country — more concentrated than 20% of the names used widely enough to compare. See the most regional names

Cassian around the world

Where Cassian 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
    #287
    in 2025
  • Scotland
    2017–2025
    #560
    in 2025
  • Ireland
    2013–2025
    #509
    in 2025
  • France
    1998–2025
    #1,123
    in 2025
  • Canada
    2011–2024
    #594
    in 2024
  • South Australia
    1980–2013
    #754
    in 2013

Popularity data from Office for National Statistics, National Records of Scotland, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Notable people named Cassian

People whose public names include Cassian, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Cassian in other languages

Cross-language forms and variants of Cassian. Linked forms have their own page here.

KassianCassiàCassiano

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Cassian by the numbers

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

As a boy's name

Rank in 2025
#479
Trend vs 5 yrs ago
Up 557
Best rank ever
#479
2025
Peak year
2025
633 that year
First recorded
1997
Last recorded
2025
All-time count
2,893
Count in 2025
633

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#10,479
2023
Peak year
2023
9 that year
First recorded
2017
Last recorded
2023
All-time count
14
Count in 2025
Under 5

Names similar to Cassian

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

CaspianCashtonCassidyCastielCasimirCassiusJullianBastianFinnianDarrianFlorianCasperWillianCillianCasimerCasimiroCassielCashiusJavianFavianJayvianKilianVivianCaswell

Names with a curve like Cassian

Not spelling — timing. These names rose, peaked and faded in the same years as Cassian, so they read as being from the same moment even when they look nothing alike.

KaizenKyroRhodesBellamyKyaireRiggsWylderAtreusSevynAmiasKylianChosen

Sibling names for Cassian

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 Cassian

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