Caitlyn vs Dailyn

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
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Dailyn

Girl #2,470 Most Popular 2 Syllables

Meaning

"valley (from Dale + lyn suffix)"

Origin: Old English

Cultural Roots

American

Quick Stats

Popularity Rank
#2,470
Total SSA Count
73
Syllables
2
Formality
Casual
Nicknames
Day, Daly

Playground Safety Score

✓ All Clear
Full profile for Dailyn →

Popularity Comparison

Caitlyn Rank #2,348
Dailyn Rank #2,470

Caitlyn is more popular, ranked #2348 vs #2470 for Dailyn.

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

Dailyn ___

  • Dailyn Rose
  • Dailyn Grace
  • Dailyn Mae
  • Dailyn Jade
  • Dailyn Skye
  • Dailyn Blair

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caitlyn

Brendan Declan Siobhan Aoife Niamh

If you choose Dailyn

Kaelyn Bryson Hadley Presley Rylan

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Caitlyn or Dailyn more popular?

Caitlyn is more popular, ranked #2348 compared to Dailyn at #2470 in the United States.

What do Caitlyn and Dailyn mean?

Caitlyn means "pure, unblemished" (Greek via Irish origin). Dailyn means "valley (from Dale + lyn suffix)" (Old English origin).

Are Caitlyn and Dailyn boy or girl names?

Caitlyn is primarily a girl name. Dailyn is primarily a girl name.

More Comparisons

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