Boy Name · English Origin
Kai
Last reviewed: June 2026
Considering Kai? It is a boy name whose meaning is "Pure hearted", rooted in English naming tradition, and ranks in our Rare popularity tier. Phonetically it shares territory with Khai, but stands on its own.
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Frequently asked about Kai
What does the name Kai mean?
Kai means "Pure hearted" and is of English origin.
What is the origin of Kai?
Kai 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 Kai?
Kai has 3 letters and is most commonly stressed on the first syllable. Tap the pronunciation player on this page to hear it spoken aloud.
Is Kai a boy's or girl's name?
Kai is primarily used as a boy's name in US records, though usage can vary by region and era.
How popular is Kai in 2026?
In our 2026 popularity tracker, Kai sits in the Rare tier — an uncommon, standout choice.
What names are similar to Kai?
Names that share Kai's sound and style include Khai, Kay, Kee, Kye, Kou. Open the "Names like Kai" rail on this page for the full list.