Caitlyn vs Lew

Baby Name Comparison — 2026

Caitlyn

Girl #2,348 Most Popular 2 Syllables

Meaning

"pure, unblemished"

Origin: Greek via Irish

Cultural Roots

Irish Welsh American British

Quick Stats

Popularity Rank
#2,348
Total SSA Count
78
Syllables
2
Formality
Moderate
Nicknames
Cait, Kate, Katie

Playground Safety Score

✓ All Clear
Full profile for Caitlyn →

Lew

Boy #7,242 Most Popular 1 Syllable

Meaning

"famous warrior (from Chlodwig/Louis)"

Origin: Old High German

Cultural Roots

English American Welsh Scottish Jewish-American

Quick Stats

Popularity Rank
#7,242
Total SSA Count
12
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Lew →

Popularity Comparison

Caitlyn Rank #2,348
Lew Rank #7,242

Caitlyn is more popular, ranked #2348 vs #7242 for Lew.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caitlyn ___

  • Caitlyn Grace
  • Caitlyn Rose
  • Caitlyn Marie
  • Caitlyn Lynn
  • Caitlyn Anne
  • Caitlyn Jane

Lew ___

  • Lew Harrison
  • Lew Archer
  • Lew Henry
  • Lew Whitmore
  • Lew Tanner

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caitlyn

Brendan Declan Siobhan Aoife Niamh

If you choose Lew

Sal Ned Dot Vera Bess

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 Caitlyn or Lew more popular?

Caitlyn is more popular, ranked #2348 compared to Lew at #7242 in the United States.

What do Caitlyn and Lew mean?

Caitlyn means "pure, unblemished" (Greek via Irish origin). Lew means "famous warrior (from Chlodwig/Louis)" (Old High German origin).

Are Caitlyn and Lew boy or girl names?

Caitlyn is primarily a girl name. Lew is primarily a boy name.

More Comparisons

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← Full profile: Caitlyn ← Full profile: Lew Browse all baby names