Ronan vs Theodore

Baby Name Comparison — 2026

Ronan

Boy #257 Most Popular 2 Syllables

Meaning

"little seal"

Origin: Old Irish

Cultural Roots

Irish Scottish Celtic English

Quick Stats

Popularity Rank
#257
Total SSA Count
1,370
Syllables
2
Formality
Moderate
Nicknames
Ron

Playground Safety Score

✓ All Clear
Full profile for Ronan →

Popularity Comparison

Ronan Rank #257
Theodore Rank #4

Theodore is more popular, ranked #4 vs #257 for Ronan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Ronan ___

  • Ronan James
  • Ronan Patrick
  • Ronan Michael
  • Ronan Cillian
  • Ronan Lee
  • Ronan Finn

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 Ronan

Finn Cillian Saoirse Niamh Declan

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 Ronan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Ronan at #257 in the United States.

What do Ronan and Theodore mean?

Ronan means "little seal" (Old Irish origin). Theodore means "divine gift" (Greek origin).

Are Ronan and Theodore boy or girl names?

Ronan is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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