Olivia vs Theresa

Baby Name Comparison — 2026

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 →

Theresa

Girl #1,501 Most Popular 3 Syllables

Meaning

"to harvest, reaper"

Origin: Greek

Cultural Roots

Spanish Italian German English Portuguese

Quick Stats

Popularity Rank
#1,501
Total SSA Count
145
Syllables
3
Formality
Moderate
Nicknames
Terry, Terri, Tess

Playground Safety Score

✓ All Clear
Full profile for Theresa →

Popularity Comparison

Olivia Rank #1
Theresa Rank #1,501

Olivia is more popular, ranked #1 vs #1501 for Theresa.

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

Theresa ___

  • Theresa Marie
  • Theresa Ann
  • Theresa Grace
  • Theresa Rose
  • Theresa Louise
  • Theresa Claire

Sibling Name Ideas

Names that pair well as siblings.

If you choose Olivia

Liam Noah Charlotte Emma Sophia

If you choose Theresa

Margaret Catherine Bernard Frances Joseph

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 Theresa more popular?

Olivia is more popular, ranked #1 compared to Theresa at #1501 in the United States.

What do Olivia and Theresa mean?

Olivia means "olive tree" (Latin origin). Theresa means "to harvest, reaper" (Greek origin).

Are Olivia and Theresa boy or girl names?

Olivia is primarily a girl name. Theresa is primarily a girl name.

More Comparisons

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