Declan vs Oliver

Baby Name Comparison — 2026

Declan

Boy #131 Most Popular 2 Syllables

Meaning

"man of prayer"

Origin: Irish Gaelic

Cultural Roots

Irish English American

Quick Stats

Popularity Rank
#131
Total SSA Count
2,758
Syllables
2
Formality
Moderate
Nicknames
Dec, Decs

Playground Safety Score

✓ All Clear
Full profile for Declan →

Popularity Comparison

Declan Rank #131
Oliver Rank #3

Oliver is more popular, ranked #3 vs #131 for Declan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Declan ___

  • Declan James
  • Declan Patrick
  • Declan Michael
  • Declan Ryan
  • Declan Thomas
  • Declan Cole

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 Declan

Finn Liam Siobhan Aoife Rowan

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 Declan or Oliver more popular?

Oliver is more popular, ranked #3 compared to Declan at #131 in the United States.

What do Declan and Oliver mean?

Declan means "man of prayer" (Irish Gaelic origin). Oliver means "olive tree" (Latin origin).

Are Declan and Oliver boy or girl names?

Declan is primarily a boy name. Oliver is primarily a boy name.

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