Isayiah vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Isayiah Rank #23,435
Theodore Rank #4

Theodore is more popular, ranked #4 vs #23435 for Isayiah.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Isayiah ___

No pairings available yet.

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Isayiah

No sibling data available yet.

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Isayiah or Theodore more popular?

Theodore is more popular, ranked #4 compared to Isayiah at #23435 in the United States.

What do Isayiah and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Isayiah and Theodore boy or girl names?

Isayiah is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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← Full profile: Isayiah ← Full profile: Theodore Browse all baby names