Olivia vs Rehgan

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

Gianna Alani Sophie Annie

Full profile for Olivia →

Rehgan

Girl #51,160 Most Popular

Quick Stats

Popularity Rank: #51,160
Total SSA Count: 5
Nicknames: Reh, Rehg, Rehgy

Playground Safety Score

✓ All Clear

Similar Names

Fathia Alwillie Nouran

Full profile for Rehgan →

Popularity Comparison

Olivia Rank #1

Rehgan Rank #51,160

Olivia is more popular, ranked #1 vs #51160 for Rehgan.

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

Rehgan ___

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 Rehgan

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 Rehgan more popular?

Olivia is more popular, ranked #1 compared to Rehgan at #51160 in the United States.

What do Olivia and Rehgan mean?

Olivia means "olive tree" (Latin origin).

Are Olivia and Rehgan boy or girl names?

Olivia is primarily a girl name. Rehgan is primarily a girl name.

More Comparisons

Rehgan vs Olivia Olivia vs Gianna Olivia vs Alani Olivia vs Sophie Olivia vs Annie

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