Callaghan vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Callaghan Rank #3,457
Theodore Rank #4

Theodore is more popular, ranked #4 vs #3457 for Callaghan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Callaghan ___

  • Callaghan James
  • Callaghan Patrick
  • Callaghan Sean
  • Callaghan Brendan
  • Callaghan Michael
  • Callaghan Thomas

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 Callaghan

Finnegan Declan Brigid Siobhan Kieran

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 Callaghan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Callaghan at #3457 in the United States.

What do Callaghan and Theodore mean?

Callaghan means "lover of churches" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Callaghan and Theodore boy or girl names?

Callaghan is primarily a boy name. Theodore is primarily a boy name.

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