Casmir
Boy nameCasmir has been given to 356 babies in the U.S. since 1913. It peaked in 1918. In 2025, about 1 in 284,679 boys was named Casmir.
Popularity over time births per year, 1880–2025
Total babies
356
Peak year
1918 (24 babies)
Rank in 2025
Below top 1000
First recorded
1913
10-year trend
New / returning
Gender split
4% girls / 96% boys
Spellings & variants
Names one letter away from Casmir — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Casmir.
Sibling name ideas for Casmir
Same era and popularity as Casmir, avoiding matching initials or rhymes.
FAQ
How popular is the name Casmir?
Casmir has been given to 356 babies in the U.S. since 1913. It ranked below the top 1000 in 2025.
When did the name Casmir peak?
Casmir peaked in 1918, when 24 babies were given the name.
Is Casmir a girl or boy name?
Casmir is primarily a boy name (96% of babies named Casmir are boys).
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