Dillan vs Olivia

Baby Name Comparison — 2026

Dillan

Boy #2,887 Most Popular 2 Syllables

Meaning

"great tide, sea flow"

Origin: Welsh

Cultural Roots

Welsh English Irish American

Quick Stats

Popularity Rank
#2,887
Total SSA Count
44
Syllables
2
Formality
Moderate
Nicknames
Dill

Playground Safety Score

✓ All Clear
Full profile for Dillan →

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

Dillan Rank #2,887
Olivia Rank #1

Olivia is more popular, ranked #1 vs #2887 for Dillan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Dillan ___

  • Dillan James
  • Dillan Lee
  • Dillan Thomas
  • Dillan Michael
  • Dillan Owen
  • Dillan Rhys

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 Dillan

Brennan Kieran Declan Sienna Bryn

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 Dillan or Olivia more popular?

Olivia is more popular, ranked #1 compared to Dillan at #2887 in the United States.

What do Dillan and Olivia mean?

Dillan means "great tide, sea flow" (Welsh origin). Olivia means "olive tree" (Latin origin).

Are Dillan and Olivia boy or girl names?

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

More Comparisons

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