Boy Name · Slavic Origin
Casimir
Last reviewed: June 2026
Casimir — a boy name from the Slavic tradition — is an uncommon, standout choice. Its meaning, "Destroyer of peace", anchors the name in something deeper than sound alone. If Casimer is on your shortlist, Casimir belongs in the same conversation.
Names like Casimir
Frequently asked about Casimir
What does the name Casimir mean?
Casimir means "Destroyer of peace" and is of Slavic origin.
What is the origin of Casimir?
Casimir originates in Slavic naming tradition.
How do you pronounce Casimir?
Casimir has 7 letters and is most commonly stressed on the first syllable.
Is Casimir a boy's or girl's name?
Casimir is primarily used as a boy's name in US records.
How popular is Casimir in 2026?
In our 2026 popularity tracker, Casimir sits in the Rare tier — an uncommon, standout choice.
What names are similar to Casimir?
Names that share Casimir's sound and style include Casimer, Casimiro, Cassian, Cayson, Casen.