Cass vs Olivia

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
Full profile for Olivia →

Popularity Comparison

Cass Rank #5,414
Olivia Rank #1

Olivia is more popular, ranked #1 vs #5414 for Cass.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cass ___

  • Cass River
  • Cass James
  • Cass Elliott
  • Cass Monroe
  • Cass Theodore
  • Cass August

Olivia ___

  • Olivia Rose
  • Olivia Grace
  • Olivia Jane
  • Olivia Mae
  • Olivia Claire
  • Olivia Jade

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cass

Juno Wren Beau Quinn Milo

If you choose Olivia

Liam Noah Charlotte Emma Sophia

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 Cass or Olivia more popular?

Olivia is more popular, ranked #1 compared to Cass at #5414 in the United States.

What do Cass and Olivia mean?

Cass means "hollow, vain (from Latin Cassius)" (Latin origin). Olivia means "olive tree" (Latin origin).

Are Cass and Olivia boy or girl names?

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

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