Cosmas vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Cosmas Rank #24,329
Theodore Rank #4

Theodore is more popular, ranked #4 vs #24329 for Cosmas.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cosmas ___

No pairings available yet.

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 Cosmas

No sibling data available yet.

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 Cosmas or Theodore more popular?

Theodore is more popular, ranked #4 compared to Cosmas at #24329 in the United States.

What do Cosmas and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Cosmas and Theodore boy or girl names?

Cosmas is primarily a boy name. Theodore is primarily a boy name.

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