Cullan vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Cullan Rank #18,097
Theodore Rank #4

Theodore is more popular, ranked #4 vs #18097 for Cullan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cullan ___

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 Cullan

No sibling data available yet.

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 Cullan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Cullan at #18097 in the United States.

What do Cullan and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Cullan and Theodore boy or girl names?

Cullan is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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