Olivia vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Olivia Rank #1
Theodore Rank #4

Olivia is more popular, ranked #1 vs #4 for Theodore.

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

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Olivia

Liam Noah Charlotte Emma Sophia

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

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 Theodore more popular?

Olivia is more popular, ranked #1 compared to Theodore at #4 in the United States.

What do Olivia and Theodore mean?

Olivia means "olive tree" (Latin origin). Theodore means "divine gift" (Greek origin).

Are Olivia and Theodore boy or girl names?

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

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