Isidore vs Theodore

Baby Name Comparison — 2026

Isidore

Boy #3,500 Most Popular 4 Syllables

Meaning

"gift of Isis"

Origin: Greek

Cultural Roots

Greek French Spanish Christian Jewish

Quick Stats

Popularity Rank
#3,500
Total SSA Count
33
Syllables
4
Formality
Formal
Nicknames
Izzy, Dory, Sid

Playground Safety Score

✓ All Clear
Full profile for Isidore →

Popularity Comparison

Isidore Rank #3,500
Theodore Rank #4

Theodore is more popular, ranked #4 vs #3500 for Isidore.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Isidore ___

  • Isidore James
  • Isidore Henry
  • Isidore Charles
  • Isidore Felix
  • Isidore Louis

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 Isidore

Theodora Cecily Ambrose Cressida Cornelius

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 Isidore or Theodore more popular?

Theodore is more popular, ranked #4 compared to Isidore at #3500 in the United States.

What do Isidore and Theodore mean?

Isidore means "gift of Isis" (Greek origin). Theodore means "divine gift" (Greek origin).

Are Isidore and Theodore boy or girl names?

Isidore is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Isidore Isidore vs Shyne Isidore vs Ruhaan Isidore vs Rylin Isidore vs Henryk
← Full profile: Isidore ← Full profile: Theodore Browse all baby names