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
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.
| State | Rank there | Babies |
|---|---|---|
| Alaska | #168 | 5 |
| Nevada | #246 | 12 |
| California | #301 | 123 |
| Washington | #340 | 22 |
| Wisconsin | #343 | 16 |
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.
Sibling names for Cassian
Similar names
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