Boy Name · English Origin
Casimer
Last reviewed: June 2026
Looking at Casimer? On Baby Name Studio it appears in our Rare popularity tier and carries the meaning "Strong-willed", drawn from English naming roots. Common sibling-shortlist neighbor: Casimiro.
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Frequently asked about Casimer
What does the name Casimer mean?
Casimer means "Strong-willed" and is of English origin.
What is the origin of Casimer?
Casimer originates in English naming tradition. Names of English origin often share recognizable sounds and cultural roots that shape how the name reads today.
How do you pronounce Casimer?
Casimer has 7 letters and is most commonly stressed on the first syllable. Tap the pronunciation player on this page to hear it spoken aloud.
Is Casimer a boy's or girl's name?
Casimer is primarily used as a boy's name in US records, though usage can vary by region and era.
How popular is Casimer in 2026?
In our 2026 popularity tracker, Casimer sits in the Rare tier — an uncommon, standout choice.
What names are similar to Casimer?
Names that share Casimer's sound and style include Casimiro, Casimir, Carter, Casper, Carver. Open the "Names like Casimer" rail on this page for the full list.