Isaias vs Theodore

Baby Name Comparison — 2026

Isaias

Boy #448 Most Popular 4 Syllables

Meaning

"God is salvation, Yahweh saves"

Origin: Hebrew (Yeshayahu)

Cultural Roots

Spanish Portuguese Latin American Filipino

Quick Stats

Popularity Rank
#448
Total SSA Count
703
Syllables
4
Formality
Moderate
Nicknames
Isa, Zai, Zias

Playground Safety Score

✓ All Clear
Full profile for Isaias →

Popularity Comparison

Isaias Rank #448
Theodore Rank #4

Theodore is more popular, ranked #4 vs #448 for Isaias.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Isaias ___

  • Isaias Gabriel
  • Isaias Daniel
  • Isaias Rafael
  • Isaias Antonio
  • Isaias Miguel
  • Isaias Emmanuel

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 Isaias

Elias Ezekiel Matias Miriam Esther

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 Isaias or Theodore more popular?

Theodore is more popular, ranked #4 compared to Isaias at #448 in the United States.

What do Isaias and Theodore mean?

Isaias means "God is salvation, Yahweh saves" (Hebrew (Yeshayahu) origin). Theodore means "divine gift" (Greek origin).

Are Isaias and Theodore boy or girl names?

Isaias is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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