Cassian

BoyLatin· “from the Roman family name Cassius”

Meaning
from the Roman family name Cassius
Origin
Latin
Pronunciation
KAS-ee-uhn
Syllables
2
US rank 2025
#479
US babies 2025
633
Best rank
#479 (2025)
Peak year
2025

Meaning and origin of Cassian

Cassian is a Latin name that is usually said to mean “from the Roman family name Cassius”.

Cassian comes from the Roman family name Cassianus, derived from Cassius. Saint John Cassian was an early Christian monk and writer whose works influenced Western monasticism, and several other saints bear the name. In recent years it has gained attention through the Star Wars character Cassian Andor. The name has a sophisticated, classical feel and a smooth sound. Cass and Cash make possible nicknames. Related names include Cassius and the French Cassien, both from the same Roman family.

Popularity over time

0200400600800200020102020Peak 2025: 633
US babies named Cassian per year, 1880 to 2025

Cassian first appears in US Social Security records in 1997. It has ranked in the top 1,000 in 5 different years, starting in 2021. It is at its all-time high right now: 2025 brought both its best national rank, #479, and its highest count, 633 babies. Use has grown 3232% in ten years.

Its national rank moved from #6,091 in 2010 and #479 in 2025. Of the 2,893 US boys named Cassian since records began, 80% were born in the 2020s, its biggest decade.

Other boys' names that peaked around the same time include Hezekiah, Samson, Makai, Musa, and Caspian.

Where it is most popular (2025)

In 2025, Cassian ranked highest in Alaska, Nevada, and California.

StateRank thereBabies
Alaska#1685
Nevada#24612
California#301123
Washington#34022
Wisconsin#34316

Gender, sound and spelling

In the US it is used almost only for boys.

Cassian is usually pronounced KAS-ee-uhn, with two syllables. It has seven letters, starts with C and ends in “-an”.

Middle names for Cassian

A few middle names that flow with Cassian: each avoids a matching first letter, a rhyme and a vowel clash where the names meet.

Noah Boy
NOH-uh
“rest, comfort” · Hebrew
#2
William Boy
WIHL-yuhm
“resolute protector” · Germanic
#9
James Boy
JAYMZ
“holder of the heel, supplanter” · English
#6
John Boy
JAHN
“Yahweh is gracious” · Hebrew
#23
Leo Boy
LEE-oh
“lion” · Latin
#19
River Unisex
RIH-vur
“river” · English
#111

Sibling names for Cassian

Similar names

Lucian Boy
LOO-shuhn
“light” · Latin
#462
Aidan Boy
AY-dihn
“little fire” · Irish
#326
Cristian Boy
krees-tee-AHN
“follower of Christ” · Spanish
#362
Ronan Boy
ROH-nuhn
“little seal” · Irish
#247
Fabian Boy
FAY-bee-uhn
“from the Roman family name Fabius” · Latin
#468
Killian Boy
KIHL-ee-uhn
“possibly 'little church'” · Irish
#418
Elian Boy
eh-lee-AHN
“uncertain; from the Roman name Aelianus” · Spanish
#147
Kieran Boy
KEER-uhn
“little dark one” · Irish
#389
mak-sih-MIHL-yuhn
“greatest” · Latin
#590
Cillian Boy
KIH-lee-uhn
“uncertain; possibly church or strife” · Irish
#507
Christian Boy
KRIHS-chuhn
“follower of Christ” · Latin
#96
Sebastian Boy
suh-BAS-chuhn
“from Sebaste; venerable” · Latin
#16

Lists that include Cassian

Frequently asked questions

What does the name Cassian mean?

Cassian is a Latin name that is usually said to mean “from the Roman family name Cassius”.

What is the origin of the name Cassian?

Cassian has Latin roots. Cassian comes from the Roman family name Cassianus, derived from Cassius.

Is Cassian a popular name?

Yes. Cassian ranked #479 in the US in 2025, which makes it in the top 1,000.

Is Cassian a boy or girl name?

Cassian is mainly a boy's name. In the US it is used almost only for boys.

How do you pronounce Cassian?

Cassian is usually pronounced KAS-ee-uhn. Stressed syllables are in capital letters.

Popularity figures come from US Social Security card applications (names given to at least five babies in a year, 1880 to 2025). How we source names and meanings