How Many People Are Named Cassian?
An estimated 2,255 people in the United States have the first name Cassian. It is predominantly male (99.4%). The average bearer is 5 years old, and Cassian peaked in popularity in 2023 with 564 births that year.
Below you will find a full statistical profile of Cassian as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Cassian paired with any surname.
Key Insights
- Cassian is a modern name. With an average bearer age of just 5, it has gained most of its popularity in recent years.
Estimated Living Americans
2,255
About 1 in 151,997 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.4% confidence
Average Age
5
years old
Peak Year
2023
564 births
Total Registered
2,270
since 1880
Gender Distribution for Cassian
Cassian is almost exclusively a male name. Out of 2,270 total births registered, 99.4% were male.
Cassian as a male name
Ranked #616 in 2024
462 male births in 2024
Peak: 2023 (555 births)
Cassian as a female name
Ranked #10,467 in 2023
9 female births in 2023
Peak: 2023 (9 births)
Cassian: Popularity Over Time
SSA records for Cassian span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2020s, when 1,696 babies were registered. Cassian remains highly popular today, with recent registration numbers near its historical peak.
Cassian by Decade
How has Cassian tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Cassian by State
Birth registrations for Cassian span all 37 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in New Mexico, Mississippi, Idaho. On average, about 45 Cassians were registered per state.
Cassian + Last Name Combinations
How many people share a full name with Cassian as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cassian
Other first names starting with C with a similar number of bearers.
Cassian: Questions and Answers
How many people in the U.S. are named Cassian?
We estimate approximately 2,255 people named Cassian are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 151,997 Americans share this first name.
Is Cassian a common name?
Cassian is classified as "Rare" and is more popular than 94.2% of all first names in the SSA database. A total of 2,270 births have been registered with this name since 1880.
When was Cassian most popular?
Cassian reached peak popularity in 2023, when 564 babies were given this name. The average age of a living person named Cassian is approximately 5 years old, reflecting when the name was most commonly given.
Is Cassian a male name?
Cassian is predominantly male. 99.4% of people with this name are male. See the gender breakdown above for full details.
How many Cassian Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cassian Smith, Cassian Johnson, Cassian Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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