Caelus vs Caitlyn

Baby Name Comparison — 2026

Caelus

Boy #7,179 Most Popular 2 Syllables

Meaning

"sky, heaven"

Origin: Latin

Cultural Roots

Roman English American

Quick Stats

Popularity Rank
#7,179
Total SSA Count
12
Syllables
2
Formality
Formal
Nicknames
Cael, Sky, Cal

Playground Safety Score

✓ All Clear
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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 →

Popularity Comparison

Caelus Rank #7,179
Caitlyn Rank #2,348

Caitlyn is more popular, ranked #2348 vs #7179 for Caelus.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caelus ___

  • Caelus James
  • Caelus Orion
  • Caelus River
  • Caelus Aurelius
  • Caelus Jace
  • Caelus Sebastian

Caitlyn ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caelus

Orion Luna Ceres Atlas Lyra

If you choose Caitlyn

Brendan Declan Siobhan Aoife Niamh

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 Caelus or Caitlyn more popular?

Caitlyn is more popular, ranked #2348 compared to Caelus at #7179 in the United States.

What do Caelus and Caitlyn mean?

Caelus means "sky, heaven" (Latin origin). Caitlyn means "pure, unblemished" (Greek via Irish origin).

Are Caelus and Caitlyn boy or girl names?

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

More Comparisons

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