Olivia vs Thomas

Baby Name Comparison — 2026

Thomas

Boy #39 Most Popular 2 Syllables

Meaning

"Twin"

Origin: Aramaic

Cultural Roots

English French German Spanish Irish

Quick Stats

Popularity Rank
#39
Total SSA Count
6,576
Syllables
2
Formality
Moderate
Nicknames
Tom, Tommy, Thom

Playground Safety Score

✓ All Clear
Full profile for Thomas →

Popularity Comparison

Olivia Rank #1
Thomas Rank #39

Olivia is more popular, ranked #1 vs #39 for Thomas.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Olivia ___

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

Thomas ___

  • Thomas James
  • Thomas William
  • Thomas Edward
  • Thomas Robert
  • Thomas Henry
  • Thomas Alexander

Sibling Name Ideas

Names that pair well as siblings.

If you choose Olivia

Liam Noah Charlotte Emma Sophia

If you choose Thomas

Elizabeth Charlotte Margaret James William

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 Olivia or Thomas more popular?

Olivia is more popular, ranked #1 compared to Thomas at #39 in the United States.

What do Olivia and Thomas mean?

Olivia means "olive tree" (Latin origin). Thomas means "Twin" (Aramaic origin).

Are Olivia and Thomas boy or girl names?

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

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