Cassius
Borrowed from Latin Cassius, a Roman name derived from the gens Cassia.
Every Cassius since 1880 — 9,766 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Cassius
Cassius is uncommon for boys in the United States, ranked #583 in 2025 with 504 babies given the name. It is currently rising compared with a decade ago.
Since 1880, 9,766 American babies have been named Cassius. Its peak came in 2021, when 612 newborns received the name — the signature sound of the 2020s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Cassius stood among all boys' names in any year, or use the compare tool to plot it against other names.
Cassius year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | — | — | 504 | #583 |
| 2024 | — | — | 516 | #569 |
| 2023 | 5 | #15,656 | 509 | #576 |
| 2022 | 7 | #12,509 | 541 | #549 |
| 2021 | 5 | #15,733 | 607 | #487 |
| 2020 | 5 | #15,591 | 602 | #488 |
| 2019 | — | — | 554 | #514 |
| 2018 | — | — | 460 | #595 |
| 2017 | 8 | #11,873 | 467 | #582 |
| 2016 | — | — | 449 | #600 |
| 2015 | — | — | 406 | #644 |
| 2014 | — | — | 346 | #704 |
| 2013 | — | — | 300 | #757 |
| 2012 | — | — | 218 | #934 |
| 2011 | — | — | 240 | #873 |
| 2010 | — | — | 195 | #1,006 |
| 2009 | — | — | 199 | #993 |
| 2008 | — | — | 213 | #946 |
| 2007 | — | — | 164 | #1,115 |
| 2006 | — | — | 169 | #1,059 |
| 2005 | — | — | 102 | #1,443 |
| 2004 | — | — | 95 | #1,457 |
| 2003 | — | — | 79 | #1,597 |
| 2002 | — | — | 85 | #1,484 |
| 2001 | — | — | 59 | #1,875 |
| 2000 | — | — | 60 | #1,801 |
| 1995 | — | — | 34 | #2,302 |
| 1990 | — | — | 42 | #1,842 |
| 1985 | — | — | 16 | #2,963 |
| 1980 | — | — | 11 | #3,650 |
| 1975 | — | — | 11 | #3,275 |
| 1970 | — | — | 27 | #1,661 |
| 1965 | — | — | 42 | #1,167 |
| 1960 | — | — | 8 | #3,128 |
| 1955 | — | — | 8 | #3,002 |
| 1950 | — | — | 6 | #3,372 |
| 1945 | — | — | — | — |
| 1940 | — | — | 8 | #2,699 |
| 1935 | — | — | 6 | #3,316 |
| 1930 | — | — | 12 | #2,319 |
| 1925 | — | — | 10 | #2,779 |
| 1920 | — | — | 16 | #2,062 |
| 1915 | — | — | 10 | #2,480 |
| 1910 | — | — | 5 | #1,631 |
| 1905 | — | — | — | — |
| 1900 | — | — | — | — |
| 1895 | — | — | 6 | #998 |
| 1890 | — | — | 7 | #820 |
| 1885 | — | — | 7 | #776 |
| 1880 | — | — | 17 | #430 |
Famous people named Cassius
- Cassius Dio Historian · 155–235
- Cassius Chaerea Politician · -12–41
- Cassius Longinus Writer · 213–273
Ranked by global fame across Wikipedia editions (Pantheon project, MIT).
Frequently asked questions
What does the name Cassius mean?
Borrowed from Latin Cassius, a Roman name derived from the gens Cassia.
How popular is the name Cassius in 2025?
Cassius ranked #583 among boys' names in the United States in 2025, with 504 babies given the name, according to Social Security Administration data.
How many people are named Cassius?
9,766 babies have been named Cassius in the United States since 1880, based on Social Security card applications.
When was the name Cassius most popular?
Cassius peaked in 2021, when 612 newborns received the name.
Is Cassius a boy or girl name?
Cassius is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Cassius rising or falling?
Cassius is on the rise — noticeably more popular now than a decade ago.
Who are famous people named Cassius?
Well-known people named Cassius include Cassius Dio (historian), Cassius Chaerea (politician), Cassius Longinus (writer).