Isiac vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Isiac Rank #14,062
Theodore Rank #4

Theodore is more popular, ranked #4 vs #14062 for Isiac.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Isiac ___

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 Isiac

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 Isiac or Theodore more popular?

Theodore is more popular, ranked #4 compared to Isiac at #14062 in the United States.

What do Isiac and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Isiac and Theodore boy or girl names?

Isiac is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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