Cai vs Nelli

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 →

Nelli

Girl #6,411 Most Popular 2 Syllables

Meaning

"Bright, shining light"

Origin: Greek via Latin Eleanor

Cultural Roots

Scandinavian Finnish English Estonian

Quick Stats

Popularity Rank
#6,411
Total SSA Count
19
Syllables
2
Formality
Casual
Nicknames
Nell, Nel

Playground Safety Score

15 High Risk

{:type=>:rhyme, :severity=>:medium, :message=>"'Nelli' rhymes with 'smelly'"}

Full profile for Nelli →

Popularity Comparison

Cai Rank #1,906
Nelli Rank #6,411

Cai is more popular, ranked #1906 vs #6411 for Nelli.

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

Nelli ___

  • Nelli Rose
  • Nelli Marie
  • Nelli Sofia
  • Nelli Ingrid
  • Nelli Astrid
  • Nelli Louise

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cai

Nia Rhys Lena Beau Seren

If you choose Nelli

Oscar Hugo Axel Finn Sigrid

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 Nelli more popular?

Cai is more popular, ranked #1906 compared to Nelli at #6411 in the United States.

What do Cai and Nelli mean?

Cai means "rejoice, delight" (Latin via Welsh origin). Nelli means "Bright, shining light" (Greek via Latin Eleanor origin).

Are Cai and Nelli boy or girl names?

Cai is primarily a boy name. Nelli is primarily a girl name.

More Comparisons

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← Full profile: Cai ← Full profile: Nelli Browse all baby names