Caelyn vs Rey

Baby Name Comparison — 2026

Caelyn

Girl #5,840 Most Popular 2 Syllables

Meaning

"pure"

Origin: Greek via Irish

Cultural Roots

Irish American English

Quick Stats

Popularity Rank
#5,840
Total SSA Count
21
Syllables
2
Formality
Moderate
Nicknames
Cae, Kay, Caely

Playground Safety Score

✓ All Clear
Full profile for Caelyn →

Popularity Comparison

Caelyn Rank #5,840
Rey Rank #823

Rey is more popular, ranked #823 vs #5840 for Caelyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caelyn ___

  • Caelyn Rose
  • Caelyn Grace
  • Caelyn Mae
  • Caelyn Lynn
  • Caelyn Ann
  • Caelyn Marie

Rey ___

  • Rey Alexander
  • Rey Miguel
  • Rey Antonio
  • Rey James
  • Rey Cruz
  • Rey Luis

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caelyn

Aiden Liam Brynn Maeve Sienna

If you choose Rey

Luna Sol Diego Valentina Marco

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 Caelyn or Rey more popular?

Rey is more popular, ranked #823 compared to Caelyn at #5840 in the United States.

What do Caelyn and Rey mean?

Caelyn means "pure" (Greek via Irish origin). Rey means "king" (Spanish origin).

Are Caelyn and Rey boy or girl names?

Caelyn is primarily a girl name. Rey is primarily a boy name.

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← Full profile: Caelyn ← Full profile: Rey Browse all baby names