Merlin vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Merlin Rank #2,083
Theodore Rank #4

Theodore is more popular, ranked #4 vs #2083 for Merlin.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Merlin ___

  • Merlin James
  • Merlin Arthur
  • Merlin Rhys
  • Merlin Stone
  • Merlin Grey
  • Merlin Forest

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 Merlin

Arthur Guinevere Lancelot Morgan Tristan

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 Merlin or Theodore more popular?

Theodore is more popular, ranked #4 compared to Merlin at #2083 in the United States.

What do Merlin and Theodore mean?

Merlin means "sea fortress" (Brittonic/Welsh origin). Theodore means "divine gift" (Greek origin).

Are Merlin and Theodore boy or girl names?

Merlin is primarily a boy name. Theodore is primarily a boy name.

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