Olivia vs Siann

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

Alana Paisley Nora Hannah

Full profile for Olivia →

Siann

Girl #52,350 Most Popular

Quick Stats

Popularity Rank: #52,350
Total SSA Count: 5
Nicknames: Sia, Siy, Siie

Playground Safety Score

✓ All Clear

Similar Names

Bijou Faduma Janaja

Full profile for Siann →

Popularity Comparison

Olivia Rank #1

Siann Rank #52,350

Olivia is more popular, ranked #1 vs #52350 for Siann.

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

Siann ___

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 Siann

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 Siann more popular?

Olivia is more popular, ranked #1 compared to Siann at #52350 in the United States.

What do Olivia and Siann mean?

Olivia means "olive tree" (Latin origin).

Are Olivia and Siann boy or girl names?

Olivia is primarily a girl name. Siann is primarily a girl name.

More Comparisons

Siann vs Olivia Olivia vs Alana Olivia vs Paisley Olivia vs Nora Olivia vs Hannah

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