Caelus vs Caitlin

Baby Name Comparison — 2026

Caitlin

Girl #1,686 Most Popular 2 Syllables

Meaning

"pure, clear"

Origin: Greek via Irish

Cultural Roots

Irish Welsh American English Australian

Quick Stats

Popularity Rank
#1,686
Total SSA Count
121
Syllables
2
Formality
Moderate
Nicknames
Cait, Kate, Katie

Playground Safety Score

✓ All Clear
Full profile for Caitlin →

Popularity Comparison

Caelus Rank #7,179
Caitlin Rank #1,686

Caitlin is more popular, ranked #1686 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

Caitlin ___

  • Caitlin Marie
  • Caitlin Ann
  • Caitlin Elizabeth
  • Caitlin Rose
  • Caitlin Grace
  • Caitlin Louise

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caelus

Orion Luna Ceres Atlas Lyra

If you choose Caitlin

Siobhan Fiona Ciara Declan Conor

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 Caitlin more popular?

Caitlin is more popular, ranked #1686 compared to Caelus at #7179 in the United States.

What do Caelus and Caitlin mean?

Caelus means "sky, heaven" (Latin origin). Caitlin means "pure, clear" (Greek via Irish origin).

Are Caelus and Caitlin boy or girl names?

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

More Comparisons

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