Keylan vs Theodore

Baby Name Comparison — 2026

Keylan

Boy #4,690 Most Popular 2 Syllables

Meaning

"slender, narrow"

Origin: Irish Gaelic

Cultural Roots

Irish American English

Quick Stats

Popularity Rank
#4,690
Total SSA Count
22
Syllables
2
Formality
Moderate
Nicknames
Key, Kay

Playground Safety Score

✓ All Clear
Full profile for Keylan →

Popularity Comparison

Keylan Rank #4,690
Theodore Rank #4

Theodore is more popular, ranked #4 vs #4690 for Keylan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Keylan ___

  • Keylan James
  • Keylan Michael
  • Keylan Patrick
  • Keylan Ryan
  • Keylan Thomas
  • Keylan Joseph

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 Keylan

Brogan Fiona Declan Sienna Rory

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 Keylan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Keylan at #4690 in the United States.

What do Keylan and Theodore mean?

Keylan means "slender, narrow" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Keylan and Theodore boy or girl names?

Keylan is primarily a boy name. Theodore is primarily a boy name.

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