Olivia vs Regen

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

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Similar Names

Hallie Margot Autumn Aurora

Full profile for Olivia →

Regen

Boy #19,414 Most Popular

Quick Stats

Popularity Rank: #19,414
Total SSA Count: 6
Nicknames: Reg, Rey, Reie

Playground Safety Score

✓ All Clear

Similar Names

Regi Dag Merion Flavel

Full profile for Regen →

Popularity Comparison

Olivia Rank #1

Regen Rank #19,414

Olivia is more popular, ranked #1 vs #19414 for Regen.

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

Regen ___

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 Regen

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 Regen more popular?

Olivia is more popular, ranked #1 compared to Regen at #19414 in the United States.

What do Olivia and Regen mean?

Olivia means "olive tree" (Latin origin).

Are Olivia and Regen boy or girl names?

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

More Comparisons

Regen vs Olivia Olivia vs Hallie Olivia vs Margot Olivia vs Autumn Olivia vs Aurora

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