Olivia vs Rheia

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

Similar Names

Callie Naomi Lucy Isabella

Full profile for Olivia →

Rheia

Girl #12,067 Most Popular

Quick Stats

Popularity Rank: #12,067
Total SSA Count: 9
Nicknames: Rhe, Rhy, Rhie

Playground Safety Score

✓ All Clear

Similar Names

Maislee Annexie Adrea

Full profile for Rheia →

Popularity Comparison

Olivia Rank #1

Rheia Rank #12,067

Olivia is more popular, ranked #1 vs #12067 for Rheia.

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

Rheia ___

No pairings available yet.

Sibling Name Ideas

Names that pair well as siblings.

If you choose Olivia

Liam Noah Charlotte Emma Sophia

If you choose Rheia

No sibling data available yet.

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 Rheia more popular?

Olivia is more popular, ranked #1 compared to Rheia at #12067 in the United States.

What do Olivia and Rheia mean?

Olivia means "olive tree" (Latin origin).

Are Olivia and Rheia boy or girl names?

Olivia is primarily a girl name. Rheia is primarily a girl name.

More Comparisons

Rheia vs Olivia Olivia vs Callie Olivia vs Naomi Olivia vs Lucy Olivia vs Isabella

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