Soo vs Costello

Baby Name Comparison — 2026

Popularity Comparison

Soo Rank #30,575
Costello Rank #30,452

Costello is more popular, ranked #30452 vs #30575 for Soo.

Frequently Asked Questions

Is Soo or Costello more popular?

Costello is more popular, ranked #30452 compared to Soo at #30575 in the United States.

Are Soo and Costello boy or girl names?

Soo is primarily a boy name. Costello is primarily a boy name.

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