Eily vs Katlyn

Baby Name Comparison — 2026

Eily

Girl #5,437 Most Popular 2 Syllables

Meaning

"shining light, bright one"

Origin: Irish Gaelic

Cultural Roots

Irish Scottish Celtic

Quick Stats

Popularity Rank
#5,437
Total SSA Count
24
Syllables
2
Formality
Moderate
Nicknames
Ei, Lee

Playground Safety Score

✓ All Clear
Full profile for Eily →

Katlyn

Girl #5,604 Most Popular 2 Syllables

Meaning

"pure"

Origin: Greek via Irish

Cultural Roots

Irish American English

Quick Stats

Popularity Rank
#5,604
Total SSA Count
23
Syllables
2
Formality
Moderate
Nicknames
Kat, Katie, Kate

Playground Safety Score

✓ All Clear
Full profile for Katlyn →

Popularity Comparison

Eily Rank #5,437
Katlyn Rank #5,604

Eily is more popular, ranked #5437 vs #5604 for Katlyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Eily ___

  • Eily Rose
  • Eily Grace
  • Eily May
  • Eily Fiona
  • Eily Brigid
  • Eily Claire

Katlyn ___

  • Katlyn Rose
  • Katlyn Marie
  • Katlyn Grace
  • Katlyn Ann
  • Katlyn Elizabeth

Sibling Name Ideas

Names that pair well as siblings.

If you choose Eily

Saoirse Aoife Niamh Finn Cian

If you choose Katlyn

Megan Brianna Connor Ryan Erin

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 Eily or Katlyn more popular?

Eily is more popular, ranked #5437 compared to Katlyn at #5604 in the United States.

What do Eily and Katlyn mean?

Eily means "shining light, bright one" (Irish Gaelic origin). Katlyn means "pure" (Greek via Irish origin).

Are Eily and Katlyn boy or girl names?

Eily is primarily a girl name. Katlyn is primarily a girl name.

More Comparisons

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← Full profile: Eily ← Full profile: Katlyn Browse all baby names