Olivia vs Rui

Baby Name Comparison — 2026

Olivia

Girl #1 Most Popular 4 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English Italian American

Quick Stats

Popularity Rank
#1
Total SSA Count
14,718
Syllables
4
Formality
Moderate
Nicknames
Liv, Livvy, Oli

Playground Safety Score

✓ All Clear
Full profile for Olivia →

Rui

Boy #2,294 Most Popular 2 Syllables

Meaning

"glorious ruler"

Origin: Germanic via Portuguese

Cultural Roots

Portuguese Brazilian Japanese Chinese

Quick Stats

Popularity Rank
#2,294
Total SSA Count
62
Syllables
2
Formality
Moderate
Nicknames
Rui

Playground Safety Score

✓ All Clear
Full profile for Rui →

Popularity Comparison

Olivia Rank #1
Rui Rank #2,294

Olivia is more popular, ranked #1 vs #2294 for Rui.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Olivia ___

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

Rui ___

  • Rui Antonio
  • Rui Miguel
  • Rui Carlos
  • Rui Alexandre
  • Rui Haruki
  • Rui Eito

Sibling Name Ideas

Names that pair well as siblings.

If you choose Olivia

Liam Noah Charlotte Emma Sophia

If you choose Rui

Ines Ana Diego Mia Sora

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 Olivia or Rui more popular?

Olivia is more popular, ranked #1 compared to Rui at #2294 in the United States.

What do Olivia and Rui mean?

Olivia means "olive tree" (Latin origin). Rui means "glorious ruler" (Germanic via Portuguese origin).

Are Olivia and Rui boy or girl names?

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

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← Full profile: Olivia ← Full profile: Rui Browse all baby names