Callyn vs Theodore

Baby Name Comparison — 2026

Callyn

Girl #4,213 Most Popular 2 Syllables

Meaning

"slender, narrow"

Origin: Irish Gaelic

Cultural Roots

American Irish English

Quick Stats

Popularity Rank
#4,213
Total SSA Count
34
Syllables
2
Formality
Moderate
Nicknames
Cal, Cally, Lynn

Playground Safety Score

✓ All Clear
Full profile for Callyn →

Popularity Comparison

Callyn Rank #4,213
Theodore Rank #4

Theodore is more popular, ranked #4 vs #4213 for Callyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Callyn ___

  • Callyn Marie
  • Callyn Grace
  • Callyn Rose
  • Callyn Anne
  • Callyn Jane
  • Callyn Faith

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 Callyn

Fallyn Braelyn Maelyn Hollyn Graylyn

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 Callyn or Theodore more popular?

Theodore is more popular, ranked #4 compared to Callyn at #4213 in the United States.

What do Callyn and Theodore mean?

Callyn means "slender, narrow" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Callyn and Theodore boy or girl names?

Callyn is primarily a girl name. Theodore is primarily a boy name.

More Comparisons

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