Cassian
Cassian was given to 633 boys in 2025, #479 among boys’ names; 2,907 Americans have been recorded with it since 1997 (Social Security Administration, published May 2026).
An estimated 2,890 Americans named Cassian and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 3 years old and half are between 2 and 6.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Cassian by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Cassian mean?
Wiktionary, English section
Cassian is “a male given name from Latin of mostly historical use.”
From Latin Cassianus, derivative of Cassius. Name of early saints.
/ˈkæsi.ən/
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Cassian?
#479 among boys’ names, 2025
Cassian rose from #4,913 in 2015 to #479 in 2025 among boys’ names; its share of boys born rose from 0.01 to 0.37 per 1,000.
633 babies in 2025, the peak
Cassian peaked in 2025, when 633 boys were given it, #479 among boys’ names. In 2024 it went to 464 boys.
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2025 | 633 | #479 | 0.37 |
| 2024 | 464 | #617 | 0.27 |
| 2023 | 557 | #529 | 0.33 |
| 2022 | 244 | #938 | 0.14 |
| 2021 | 230 | #969 | 0.13 |
| 2020 | 196 | #1,036 | 0.11 |
| 2019 | 132 | #1,355 | 0.07 |
| 2018 | 136 | #1,328 | 0.07 |
| 2017 | 128 | #1,379 | 0.07 |
| 2016 | 19 | #4,975 | 0.01 |
Every recorded year (22)
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2015 | 19 | #4,913 | 0.01 |
| 2014 | 19 | #4,904 | 0.01 |
| 2013 | 13 | #6,300 | 0.01 |
| 2012 | 22 | #4,413 | 0.01 |
| 2011 | 11 | #7,080 | 0.01 |
| 2010 | 14 | #6,086 | 0.01 |
| 2009 | 17 | #5,359 | 0.01 |
| 2008 | 13 | #6,450 | 0.01 |
| 2006 | 8 | #8,849 | under 0.01 |
| 2004 | 8 | #8,250 | under 0.01 |
| 2002 | 5 | #10,918 | under 0.01 |
| 1997 | 5 | #9,476 | under 0.01 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Cassian a boy’s or a girl’s name?
Cassian has been given almost only to boys: 14 girls in 22 years of records.
Girls and boys named Cassian: the SSA national file counts each sex separately.
How many people are named Cassian, and how old are they?
2,890 alive in 2026, estimated
That is 99% of the 2,907 Americans ever recorded as Cassian. The median Cassian alive today is 3 years old; half are between 2 and 6.
The 2020 Census counted 658 people named Cassian (31 women and girls, 627 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 619 born in the U.S. The Census count is 6% above that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation Z | 1997-2012 | 102 |
| Generation Alpha | 2013-2025 | 2,790 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Cassian born?
The states with the most babies named Cassian are California, Texas and Florida, with 35% of its births recorded by state in 2025.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| California | 123 | #301 | 1.3× |
| Texas | 54 | #579 | 0.8× |
| Florida | 34 | #517 | 0.8× |
| New York | 24 | #623 | 0.7× |
| Washington | 22 | #340 | 1.2× |
| Michigan | 21 | #410 | 0.8× |
| Illinois | 21 | #489 | 0.6× |
| North Carolina | 20 | #499 | 0.7× |
| Virginia | 18 | #437 | 1.0× |
| Arizona | 18 | #413 | 0.9× |
Where Cassian is more common than its national share predicts
Relative to its national share, Cassian is most over-represented in California: since 1997 it was given 1.3 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Cassian with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 5 names spelled alike, given to 3,463 babies since 1880, Cassian is the most given (84% of them). In 2025 it was given to 633 of their 675 babies (94%), again the most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Cassian
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Cassian and names like it
- Compare Cassian and KassianBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sCassian peaked in 2025.
- California’s most given namesThe state where SSA recorded the most babies named Cassian since 1910.
- Latin namesWiktionary’s origin for Cassian: every such name, by how often it is given.
- The top names of 2025The year the most babies were named Cassian.
- The names of Generation AlphaMost people named Cassian alive today were born 2013-2025.
- Names starting with CMost given first.