Gillian vs Oliver

Baby Name Comparison — 2026

Gillian

Girl #3,126 Most Popular 3 Syllables

Meaning

"youthful"

Origin: Latin

Cultural Roots

English Scottish Irish American

Quick Stats

Popularity Rank
#3,126
Total SSA Count
51
Syllables
3
Formality
Moderate
Nicknames
Gill, Gilly, Jill

Playground Safety Score

✓ All Clear
Full profile for Gillian →

Oliver

Boy #3 Most Popular 3 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English French Scandinavian

Quick Stats

Popularity Rank
#3
Total SSA Count
15,343
Syllables
3
Formality
Moderate
Nicknames
Ollie, Oli

Playground Safety Score

✓ All Clear
Full profile for Oliver →

Popularity Comparison

Gillian Rank #3,126
Oliver Rank #3

Oliver is more popular, ranked #3 vs #3126 for Gillian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Gillian ___

  • Gillian Rose
  • Gillian Anne
  • Gillian Claire
  • Gillian Marie
  • Gillian Hope
  • Gillian Grace

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 Gillian

Alison Sheila Colin Duncan Fiona

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 Gillian or Oliver more popular?

Oliver is more popular, ranked #3 compared to Gillian at #3126 in the United States.

What do Gillian and Oliver mean?

Gillian means "youthful" (Latin origin). Oliver means "olive tree" (Latin origin).

Are Gillian and Oliver boy or girl names?

Gillian is primarily a girl name. Oliver is primarily a boy name.

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