Cai vs Calder

Baby Name Comparison — 2026

Cai

Boy #1,906 Most Popular 1 Syllable

Meaning

"rejoice, delight"

Origin: Latin via Welsh

Cultural Roots

Welsh Chinese English

Quick Stats

Popularity Rank
#1,906
Total SSA Count
83
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Cai →

Calder

Boy #2,005 Most Popular 2 Syllables

Meaning

"rough waters, hard stream"

Origin: Scottish Gaelic

Cultural Roots

Scottish English American

Quick Stats

Popularity Rank
#2,005
Total SSA Count
77
Syllables
2
Formality
Moderate
Nicknames
Cal, Cale

Playground Safety Score

✓ All Clear
Full profile for Calder →

Popularity Comparison

Cai Rank #1,906
Calder Rank #2,005

Cai is more popular, ranked #1906 vs #2005 for Calder.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cai ___

  • Cai James
  • Cai River
  • Cai Alexander
  • Cai Thomas
  • Cai Owen
  • Cai Finn

Calder ___

  • Calder James
  • Calder Ross
  • Calder Reid
  • Calder Grant
  • Calder Knox
  • Calder Finn

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cai

Nia Rhys Lena Beau Seren

If you choose Calder

Archer Fletcher Isla Rowan Bram

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 Cai or Calder more popular?

Cai is more popular, ranked #1906 compared to Calder at #2005 in the United States.

What do Cai and Calder mean?

Cai means "rejoice, delight" (Latin via Welsh origin). Calder means "rough waters, hard stream" (Scottish Gaelic origin).

Are Cai and Calder boy or girl names?

Cai is primarily a boy name. Calder is primarily a boy name.

More Comparisons

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