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Jax vs Sullivan

Baby Name Comparison — 2026

Popularity Comparison

Jax Rank #315
Sullivan Rank #340

Jax is more popular, ranked #315 vs #340 for Sullivan.

Frequently Asked Questions

Is Jax or Sullivan more popular?

Jax is more popular, ranked #315 compared to Sullivan at #340 in the United States.

What do Jax and Sullivan mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Jax and Sullivan boy or girl names?

Jax is primarily a boy name. Sullivan is primarily a boy name.

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