Cailo vs Maddyn

Baby Name Comparison — 2026

Cailo

Boy #15,816 Most Popular 2 Syllables

Meaning

"rejoice, happy"

Origin: Welsh / Latin Gaius

Cultural Roots

English Welsh Modern American

Quick Stats

Popularity Rank
#15,816
Total SSA Count
7
Syllables
2
Formality
Casual
Nicknames
Kai, Cai, Kay

Playground Safety Score

✓ All Clear
Full profile for Cailo →

Maddyn

Girl #3,007 Most Popular 2 Syllables

Meaning

"son of Matthew, gift of God"

Origin: Old English

Cultural Roots

American English

Quick Stats

Popularity Rank
#3,007
Total SSA Count
55
Syllables
2
Formality
Casual
Nicknames
Maddie, Maddy

Playground Safety Score

✓ All Clear
Full profile for Maddyn →

Popularity Comparison

Cailo Rank #15,816
Maddyn Rank #3,007

Maddyn is more popular, ranked #3007 vs #15816 for Cailo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cailo ___

  • Cailo James
  • Cailo River
  • Cailo Fox
  • Cailo Reid
  • Cailo Jude
  • Cailo Finn

Maddyn ___

  • Maddyn Grace
  • Maddyn Lee
  • Maddyn Rose
  • Maddyn Claire
  • Maddyn Ann
  • Maddyn Jade

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cailo

Zara Mila Nova Lyra Axel

If you choose Maddyn

Brayden Paisley Caden Kinsley Rylen

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 Cailo or Maddyn more popular?

Maddyn is more popular, ranked #3007 compared to Cailo at #15816 in the United States.

What do Cailo and Maddyn mean?

Cailo means "rejoice, happy" (Welsh / Latin Gaius origin). Maddyn means "son of Matthew, gift of God" (Old English origin).

Are Cailo and Maddyn boy or girl names?

Cailo is primarily a boy name. Maddyn is primarily a girl name.

More Comparisons

Maddyn vs Cailo Cailo vs Blanch Cailo vs Shey Cailo vs Dice Cailo vs Macey
← Full profile: Cailo ← Full profile: Maddyn Browse all baby names