Kassius
Kassius was given to 63 boys in 2025, #2,243 among boys’ names; 1,197 Americans have been recorded with it since 2001 (Social Security Administration, published May 2026).
An estimated 1,190 Americans named Kassius and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 6 years old and half are between 4 and 10.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kassius by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Kassius?
#2,243 among boys’ names, 2025
Kassius rose from #2,739 in 2015 to #2,243 in 2025 among boys’ names; its share of boys born rose from 23.0 to 36.9 per million.
124 babies in 2022, the peak
Kassius peaked in 2022, when 124 boys were given it, #1,463 among boys’ names. The 63 births of 2025 are 51% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 63 | #2,243 | 36.9 |
| 2024 | 84 | #1,897 | 48.8 |
| 2023 | 106 | #1,636 | 62.0 |
| 2022 | 124 | #1,463 | 71.0 |
| 2021 | 117 | #1,519 | 66.9 |
| 2020 | 103 | #1,585 | 59.7 |
| 2019 | 116 | #1,483 | 64.7 |
| 2018 | 84 | #1,814 | 46.3 |
| 2017 | 88 | #1,757 | 47.5 |
| 2016 | 54 | #2,398 | 28.5 |
Every recorded year (23)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 44 | #2,739 | 23.0 |
| 2014 | 31 | #3,502 | 16.1 |
| 2013 | 34 | #3,232 | 18.0 |
| 2012 | 22 | #4,465 | 11.6 |
| 2011 | 21 | #4,582 | 11.1 |
| 2010 | 23 | #4,303 | 12.0 |
| 2009 | 17 | #5,429 | 8.6 |
| 2008 | 10 | #7,999 | 4.9 |
| 2007 | 18 | #5,111 | 8.7 |
| 2006 | 8 | #9,151 | 3.9 |
| 2004 | 7 | #9,453 | 3.5 |
| 2003 | 8 | #8,236 | 4.0 |
| 2001 | 5 | #11,481 | 2.6 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Kassius a boy’s or a girl’s name?
Kassius has been given almost only to boys: 10 girls in 23 years of records.
Girls and boys named Kassius: the SSA national file counts each sex separately.
How many people are named Kassius, and how old are they?
1,190 alive in 2026, estimated
That is 99% of the 1,197 Americans ever recorded as Kassius. The median Kassius alive today is 6 years old; half are between 4 and 10.
The 2020 Census counted 477 people named Kassius (15 women and girls, 462 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 617 born in the U.S. The Census count is 23% below that prediction. Possible reasons: people who give a short form or another name to the Census, and a survival estimate that can run high.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation Z | 1997-2012 | 137 |
| Generation Alpha | 2013-2025 | 1,050 |
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).
How common is the spelling Kassius?
Kassius is a less common spelling of Cassius: SSA has recorded 1,197 Kassius and 9,766 Cassius since 1880.
Of these 3 names spelled alike, given to 12,974 babies since 1880, Kassius is the third most given (9.2% of them). In 2025 it was given to 63 of their 783 babies (8.0%), again the third 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 Kassius
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 Kassius and names like it
- Compare Kassius and CassiusBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sKassius peaked in 2022.
- California’s most given namesThe state where SSA recorded the most babies named Kassius since 1910.
- The top names of 2022The year the most babies were named Kassius.
- The names of Generation AlphaMost people named Kassius alive today were born 2013-2025.
- Names starting with KMost given first.