Olivia vs Theo

Baby Name Comparison — 2026

Theo

Boy #80 Most Popular 2 Syllables

Meaning

"gift of God"

Origin: Greek (theodoros)

Cultural Roots

English Greek French German American

Quick Stats

Popularity Rank
#80
Total SSA Count
4,110
Syllables
2
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Theo →

Popularity Comparison

Olivia Rank #1
Theo Rank #80

Olivia is more popular, ranked #1 vs #80 for Theo.

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

Theo ___

  • Theo James
  • Theo William
  • Theo Alexander
  • Theo Samuel
  • Theo Felix
  • Theo August

Sibling Name Ideas

Names that pair well as siblings.

If you choose Olivia

Liam Noah Charlotte Emma Sophia

If you choose Theo

Oliver Felix Eleanor Beatrice Arthur

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 Theo more popular?

Olivia is more popular, ranked #1 compared to Theo at #80 in the United States.

What do Olivia and Theo mean?

Olivia means "olive tree" (Latin origin). Theo means "gift of God" (Greek (theodoros) origin).

Are Olivia and Theo boy or girl names?

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

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