Cai vs Olivia

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 →

Popularity Comparison

Cai Rank #1,906
Olivia Rank #1

Olivia is more popular, ranked #1 vs #1906 for Cai.

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

Olivia ___

  • Olivia Rose
  • Olivia Grace
  • Olivia Jane
  • Olivia Mae
  • Olivia Claire
  • Olivia Jade

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cai

Nia Rhys Lena Beau Seren

If you choose Olivia

Liam Noah Charlotte Emma Sophia

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 Olivia more popular?

Olivia is more popular, ranked #1 compared to Cai at #1906 in the United States.

What do Cai and Olivia mean?

Cai means "rejoice, delight" (Latin via Welsh origin). Olivia means "olive tree" (Latin origin).

Are Cai and Olivia boy or girl names?

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

More Comparisons

Olivia vs Cai Cai vs Omer Cai vs Fischer Cai vs Whitley Cai vs Fynn
← Full profile: Cai ← Full profile: Olivia Browse all baby names