Given name & surname

Cassian

“one who is empty; hollow; vain”

Cassian is a variant of Cassius. One Latin interpretation is “one who is empty; hollow; vain.”

Meaning & origin

What it means

Cassian is a variant of Cassius. One Latin interpretation is “one who is empty; hollow; vain.”

Explained through its name family

Where it comes from

Cassian is a variant of Cassius. An origin associated with Cassius is Latin.

Explained through its name family

How it developed

From Latin Cassianus.

Adapted from Wiktionary (CC BY-SA 4.0)

The story

Published U.S. birth records include this spelling as early as 1997. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Cassian through the years

Babies since 1880
2,907
2,893 boys · 14 girls
Most popular year
2025
633 babies
2025
633
#479 for boys
2021–25 vs 2016–20
+247%
Rising fast
010020030040020002025Highest share 2025371
Cassian in U.S. Social Security birth records, 1997–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

Where it’s given

Most at home inCalifornia, Washington, Michigan
FewerMore, relative to births Not published
2025 births by state of birth. Tiles are equal-sized so small states stay visible. Highest rates: California (123), Washington (22), Michigan (21), Illinois (21), North Carolina (20).

By the numbers

In 2025, this name appeared in 633 U.S. birth records for boys, ranking No. 479 among boys’ names. Average annual use for boys was 248.3% higher in 2021–2025 than in 2016–2020. In 2025, California had the largest reported state-level birth count for boys with this name (123). Published U.S. population figures for this spelling include 658 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Cassian’s family of names

Cassian has a feminine form in Cassia. Cassian has a related form in Cassius. In English usage, Cassian has a conventional equivalent in the French form Cassien.

Walk Cassian’s family in the name graph

CassianCassiusCassiannCassiaKassianCassianoCassienКасијанKasijan

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 2

Diminutives, pet forms, short forms and variants used alongside the name.

Across languages 6

Equivalents and cognates in other languages, plus older forms it grew from.

People named Cassian

Characters named Cassian: Cassian Andor (Star Wars).

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

If you love Cassian, these share its style, era, origin or sound, from outside its own family.

Irish · Modern

Kian

“from an ancient family”

63FamiliarRising

>99% boys

Irish · Modern

Callahan

Callahan is a masculine given name from Irish.

71CommonRising fast

90% boys · 10% girls

Modern

Kashton

Kashton is a masculine given name.

63FamiliarRising

99% boys · 1% girls

Basque · Modern

Kasen

“one who is pure; chaste” · “protected by a helmet”

60FamiliarEasing

>99% boys

Modern

Kaysen

“a seer”

63FamiliarRising

97% boys · 3% girls

Modern

Kaizen

64FamiliarRising fast

99% boys · 1% girls

Gaelic · Modern

Cillian

“one who suffers strife”

59FamiliarRising fast

>99% boys

Modern

Kyson

Kyson is a masculine given name.

60FamiliarSteady

>99% boys

Sibling ideas

Names that share Cassian’s feel without repeating its first letter or rhyming with it.

A brother for Cassian

A sister for Cassian