Cassian vs Oliver

Baby Name Comparison — 2026

Cassian

Boy #617 Most Popular 3 Syllables

Meaning

"of the Cassian family (Roman gens)"

Origin: Latin

Cultural Roots

English American European

Quick Stats

Popularity Rank
#617
Total SSA Count
462
Syllables
3
Formality
Moderate
Nicknames
Cass, Cas

Playground Safety Score

✓ All Clear
Full profile for Cassian →

Popularity Comparison

Cassian Rank #617
Oliver Rank #3

Oliver is more popular, ranked #3 vs #617 for Cassian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cassian ___

  • Cassian James
  • Cassian Alexander
  • Cassian Oliver
  • Cassian Alaric
  • Cassian Frederick
  • Cassian Julian

Oliver ___

  • Oliver James
  • Oliver Thomas
  • Oliver William
  • Oliver Henry
  • Oliver John
  • Oliver Benjamin

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cassian

Sebastian Dorian Vivienne Isolde Adrian

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

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 Cassian or Oliver more popular?

Oliver is more popular, ranked #3 compared to Cassian at #617 in the United States.

What do Cassian and Oliver mean?

Cassian means "of the Cassian family (Roman gens)" (Latin origin). Oliver means "olive tree" (Latin origin).

Are Cassian and Oliver boy or girl names?

Cassian is primarily a boy name. Oliver is primarily a boy name.

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← Full profile: Cassian ← Full profile: Oliver Browse all baby names