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Jax vs Killian

Baby Name Comparison — 2026

Popularity Comparison

Jax Rank #315
Killian Rank #370

Jax is more popular, ranked #315 vs #370 for Killian.

Frequently Asked Questions

Is Jax or Killian more popular?

Jax is more popular, ranked #315 compared to Killian at #370 in the United States.

What do Jax and Killian mean?

Killian means "associated with the church" (Irish Gaelic origin).

Are Jax and Killian boy or girl names?

Jax is primarily a boy name. Killian is primarily a boy name.

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← Full profile: Jax ← Full profile: Killian Browse all baby names