Cassian
Gender: Boy
Meaning: Hollow, empty
Origin: Latin/Roman
Popularity: Ranked #479 in 2025 with 633 babies born.
History: Cassian is derived from the Roman family name Cassius. Saint John Cassian was a 5th-century Christian monk and theologian who helped bring Eastern monasticism to the West. It has gained modern popularity as a literary and historical alternative to more common names.
Name length: 7 letters
How common is Cassian? About 1 in 5,258 babies born in 2025 were named Cassian, or roughly 1.7 per day in the United States.
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Frequently asked about Cassian
What does the name Cassian mean?
Cassian means “Hollow, empty” from Latin/Roman roots.
What is the origin of the name Cassian?
Cassian has Latin/Roman origin. The traditional meaning is “Hollow, empty”.
How popular is Cassian?
Cassian ranked #479 in 2025 — given to 633 babies that year.
When was Cassian most popular?
Cassian peaked in 2025 with 633 babies registered that year.
Is Cassian a boy or girl name?
Cassian is predominantly a boys' name — over 90% of Cassians in registered births are male.
Is the name Cassian rising or falling in popularity?
Cassian has risen 559 spots in the rankings over the last 5 years — from #1038 in 2020 to #479 in 2025.
How long has Cassian been recorded?
Cassian appears in birth records across 22 years — from 1997 through 2025.