Ciaran vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Ciaran Rank #1,779
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1779 for Ciaran.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Ciaran ___

  • Ciaran James
  • Ciaran Patrick
  • Ciaran Finn
  • Ciaran Declan
  • Ciaran John
  • Ciaran Liam

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 Ciaran

Aoife Niamh Conor Declan Fionnuala

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Ciaran or Theodore more popular?

Theodore is more popular, ranked #4 compared to Ciaran at #1779 in the United States.

What do Ciaran and Theodore mean?

Ciaran means "little dark one" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Ciaran and Theodore boy or girl names?

Ciaran is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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