Casmir: Name Popularity, History & Rankings (1880

Rank 2025

#10,909

among boys · ↓1,774 vs 2024

Babies in 2025

named Casmir

How common

1 in 284,679

boys born in 2025

Peak year

1918

24 babies

All-time total

356

#9,876 all-time among boys

First recorded

1913

in Social Security records

Casmir popularity over time

356 babies have been named Casmir since 1913, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure

Births per 1,000 babies of that sex, comparable across eras

BoysGirls

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade	Girls	Boys	Total	Per year	Change	Best rank
1880s	–	–	–	–	–	–
1890s	–	–	–	–	–	–
1900s	–	–	–	–	–	–
1910s	–	117	117	12	–	#1,469
1920s	–	102	102	10	-13%	#1,993
1930s	–	36	36	4	-65%	#2,885
1940s	–	11	11	1	-69%	#3,424
1950s	–	–	–	–	–	–
1960s	–	–	–	–	–	–
1970s	–	–	–	–	–	–
1980s	–	–	–	–	–	–
1990s	14	–	14	1	–	–
2000s	–	15	15	2	+7%	#11,143
2010s	–	11	11	1	-27%	#11,015
2020s (to 2025)	–	50	50	8	+658%	#7,118

The story of Casmir

Casmir is rare for boys in the United States, ranked #10,909 in 2025 with 6 babies given the name. It is currently rising compared with a decade ago.

Since 1913, 356 American babies have been named Casmir. Its peak came in 1918, when 24 newborns received the name, the signature sound of the 1910s.

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 Casmir stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Casmir?

The median living Casmir is about 6 years old; half are between 3 and 30. An estimated 100 people named Casmir are alive in the United States today.

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Casmir 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	–	–	6	#10,909
2024	–	–	8	#9,135
2023	–	–	8	#9,061
2022	–	–	7	#10,012
2021	–	–	10	#7,706
2020	–	–	11	#7,118
2019	–	–	6	#11,015
2018	–	–	5	#12,492
2017	–	–	–	–
2016	–	–	–	–
2015	–	–	–	–
2014	–	–	–	–
2013	–	–	–	–
2012	–	–	–	–
2011	–	–	–	–
2010	–	–	–	–
2009	–	–	–	–
2008	–	–	5	#12,834
2007	–	–	–	–
2006	–	–	–	–
2005	–	–	5	#11,726
2004	–	–	–	–
2003	–	–	5	#11,143
2002	–	–	–	–
2001	–	–	–	–
2000	–	–	–	–
1995	9	#8,896	–	–
1990	–	–	–	–
1985	–	–	–	–
1980	–	–	–	–
1975	–	–	–	–
1970	–	–	–	–
1965	–	–	–	–
1960	–	–	–	–
1955	–	–	–	–
1950	–	–	–	–
1945	–	–	–	–
1940	–	–	–	–
1935	–	–	–	–
1930	–	–	8	#3,060
1925	–	–	9	#2,965
1920	–	–	12	#2,478
1915	–	–	22	#1,469
1910	–	–	–	–
1905	–	–	–	–
1900	–	–	–	–
1895	–	–	–	–
1890	–	–	–	–
1885	–	–	–	–
1880	–	–	–	–

Frequently asked questions

Quick answers about Casmir, drawn from the same Social Security data as the charts above.

How old is the average Casmir?

The median living Casmir is about 6 years old. Half of all living Casmirs are between 3 and 30 years old.

How many people named Casmir are alive today?

An estimated 100 people named Casmir are alive in the United States, based on 356 recorded births and Social Security life tables.

How popular is the name Casmir in 2025?

Casmir ranked #10,909 among boys' names in the United States in 2025, with 6 babies given the name, according to Social Security Administration data.

How many people are named Casmir?

356 babies have been named Casmir in the United States since 1913, based on Social Security card applications.

When was the name Casmir most popular?

Casmir peaked in 1918, when 24 newborns received the name.

Is Casmir a boy or girl name?

Casmir is overwhelmingly a boy's name: 96% of babies with the name.

Is the name Casmir rising or falling?

Casmir is on the rise, noticeably more popular now than a decade ago.

Names like Casmir

Names that sound and feel close to Casmir: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Casmir with similar names → More names starting with C →