Rook vs Theodore

Baby Name Comparison — 2026

Rook

Boy #2,371 Most Popular 1 Syllable

Meaning

"a crow-like black bird"

Origin: Old Norse

Cultural Roots

English American

Quick Stats

Popularity Rank
#2,371
Total SSA Count
59
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Rook →

Popularity Comparison

Rook Rank #2,371
Theodore Rank #4

Theodore is more popular, ranked #4 vs #2371 for Rook.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Rook ___

  • Rook James
  • Rook Alexander
  • Rook William
  • Rook Harrison
  • Rook Everett
  • Rook Oliver

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 Rook

Ace Finn Blaze Wren Lux

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 Rook or Theodore more popular?

Theodore is more popular, ranked #4 compared to Rook at #2371 in the United States.

What do Rook and Theodore mean?

Rook means "a crow-like black bird" (Old Norse origin). Theodore means "divine gift" (Greek origin).

Are Rook and Theodore boy or girl names?

Rook is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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