Callahan vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Callahan Rank #364
Theodore Rank #4

Theodore is more popular, ranked #4 vs #364 for Callahan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Callahan ___

  • Callahan James
  • Callahan Patrick
  • Callahan Thomas
  • Callahan Joseph
  • Callahan Sean
  • Callahan Michael

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 Callahan

Brennan Delaney Riordan Aoife Fiona

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 Callahan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Callahan at #364 in the United States.

What do Callahan and Theodore mean?

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

Are Callahan and Theodore boy or girl names?

Callahan is primarily a boy name. Theodore is primarily a boy name.

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