Baby Name Studio

Boy Name · English Origin

Killian

Rare · 7 letters · Pure hearted

Last reviewed: June 2026

Killian — a boy name from the English tradition — is an uncommon, standout choice. Its meaning, "Pure hearted", anchors the name in something deeper than sound alone. If Keelan is on your shortlist, Killian belongs in the same conversation.

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Frequently asked about Killian

What does the name Killian mean?

Killian means "Pure hearted" and is of English origin.

What is the origin of Killian?

Killian 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 Killian?

Killian 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 Killian a boy's or girl's name?

Killian is primarily used as a boy's name in US records, though usage can vary by region and era.

How popular is Killian in 2026?

In our 2026 popularity tracker, Killian sits in the Rare tier — an uncommon, standout choice.

What names are similar to Killian?

Names that share Killian's sound and style include Keelan, Kellan, Kylan, Kaylan, Kylian. Open the "Names like Killian" rail on this page for the full list.