Boy

Cassius

Meaning not yet researched.

2025 rank
#583
504 boys
2015
#644
rank
1950
#3,372
rank

Cassius: US boys given the name each year, 1880 to 2025, from Social Security card applications. 504 in 2025. Its best rank was #430 in 1880.

US births per year · SSA card applications

Peaked at #430 in 1880; #583 in 2025. Every baby recorded as Cassius in 2025 was a boy.

Baby name · US data 1880–2025

#583 for US boys in 2025. Its best year was 1880, at #430.

Babies in 2025
504
Since 1880
9,766
Years on record
117

Babies named Cassius, every year since 1880

Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.

Boys

Cassius: US boys given the name each year from 1880 to 2025. 504 boys in 2025. Peak: #430 in 1880 · most boys in one year: 607 (2021).

About the name Cassius

In 2025, 504 US boys were named Cassius, making it the 583rd most common boys’ name of the year, down 14 places from #569 in 2024. That is 12 fewer than the 516 boys named Cassius in 2024. Its best rank for boys was #430, reached in 1880. The most boys given the name in a single year was 607, in 2021. For comparison, it was #644 in 2015 and #3,372 in 1950.

Social Security card records list Cassius in 117 years of the 146 from 1880 to 2025, starting in 1880 with 17 babies. In all, 9,766 US babies have been given the name, 0.3% of them girls and 99.6% boys. Its busiest decade was the 2010s, with 3,643 babies named Cassius.

Over the 10 years from 2016 to 2025, 5,209 US boys were named Cassius; the busiest of those years was 2021, with 607. In 2025 that was about 1 in 3,389 of the boys in SSA’s list for the year.

Among the states, Cassius ranked highest in Maine in 2025, at #181 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Kassius (1,197 babies since 1880). Rarer spellings such as Casius, Kasius and Kassaius are summarised on this page.

Meaning

Meaning not yet researched.

We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.

Related spellings

Rare spellings summarised here: Casius (42), Kasius (37), Kassaius (11), Kassious (5).

Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.

Nicknames

No nicknames listed for Cassius in the open dataset we use.

Source: carltonnorthern/nicknames (Apache-2.0).

Cassius by state, 2025

US boys. Rank within each state. SSA leaves out states where fewer than five boys got the name, so 17 are not listed.

StateBirths 2025Rank 2025Rank 2015
Maine7#181—
Hawaii6#181—
Washington28#267#335
New Mexico7#275#357
Indiana22#342#674
Iowa9#380—
Utah12#386#621
Nevada7#398#366
Oregon9#405#345
Virginia18#438#746
Wisconsin11#446#614
Tennessee17#459—
Kentucky10#459#408
Ohio21#501#601
Minnesota10#522#650
Kansas6#537#602
Colorado10#545#597
California56#547#578
Maryland8#581#588
Missouri9#602#618
South Carolina7#616—
Massachusetts7#633#451
New York23#644#672
North Carolina14#654#567
Pennsylvania13#671#592
Georgia14#682#799
Michigan11#684#638
Alabama6#694—
Florida22#706#725
Texas39#713#947
Oklahoma5#719#482
Arizona8#732—
Illinois11#763#680
Louisiana5#796#834

Rank by year

Births and national rank for each year SSA lists the name, newest first.

CSV
YearGirlsGirls rankBoysBoys rank
2025——504#583
2024——516#569
20235#15,656509#576
20227#12,509541#549
20215#15,733607#487
20205#15,591602#488
2019——554#514
2018——460#595
20178#11,873467#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
1999——47#2,031
1998——52#1,876
1997——45#1,994
1996——42#2,047
1995——34#2,302
1994——26#2,778
1993——42#1,942
1992——44#1,849
1991——45#1,774
1990——42#1,842
1989——25#2,549
1988——27#2,258
1987——23#2,406
1986——27#2,106
1985——16#2,963
1984——24#2,170
1983——19#2,504
1982——17#2,721
1981——22#2,279
1980——11#3,650
1979——16#2,790
1978——18#2,489
1977——13#3,066
1976——20#2,253
1975——11#3,275
1974——17#2,371
1973——12#2,874
1972——19#2,091
1971——36#1,418
1970——27#1,661
1969——22#1,772
1968——19#1,848
1967——43#1,136
1966——38#1,218
1965——42#1,167
1964——78#861
1963——27#1,514
1962——15#2,127
1961——17#2,003
1960——8#3,128
1959——9#2,852
1956——6#3,588
1955——8#3,002
1951——5#3,794
1950——6#3,372
1948——13#2,130
1946——5#3,595
1944——9#2,493
1943——10#2,427
1942——7#2,971
1941——7#2,911
1940——8#2,699
1939——6#3,167
1938——5#3,597
1935——6#3,316
1932——5#3,856
1931——13#2,113
1930——12#2,319
1929——10#2,624
1928——10#2,690
1927——8#3,203
1926——13#2,319
1925——10#2,779
1924——9#3,057
1923——16#2,034
1922——10#2,837
1921——10#2,836
1920——16#2,062
1919——8#3,155
1918——16#2,011
1917——17#1,827
1916——19#1,651
1915——10#2,480
1914——9#2,303
1913——11#1,693
1910——5#1,631
1908——5#1,411
1895——6#998
1893——8#779
1892——8#810
1891——6#862
1890——7#820
1889——6#892
1888——10#657
1887——5#952
1885——7#776
1884——6#872
1883——10#605
1882——12#546
1881——9#606
1880——17#430

About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).