Olivia vs Sissie

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

Margaret Kinsley Mila Aria

Full profile for Olivia →

Sissie

Girl #70,007 Most Popular

Quick Stats

Popularity Rank: #70,007
Total SSA Count: 5
Nicknames: Sis, Siss, Sissy

Playground Safety Score

✓ All Clear

Similar Names

Clarsie Lorrain Argentina Loys

Full profile for Sissie →

Popularity Comparison

Olivia Rank #1

Sissie Rank #70,007

Olivia is more popular, ranked #1 vs #70007 for Sissie.

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

Sissie ___

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 Sissie

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 Sissie more popular?

Olivia is more popular, ranked #1 compared to Sissie at #70007 in the United States.

What do Olivia and Sissie mean?

Olivia means "olive tree" (Latin origin).

Are Olivia and Sissie boy or girl names?

Olivia is primarily a girl name. Sissie is primarily a girl name.

More Comparisons

Sissie vs Olivia Olivia vs Margaret Olivia vs Kinsley Olivia vs Mila Olivia vs Aria

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