Amelia vs Theo

Baby Name Comparison — 2026

Amelia

Girl #3 Most Popular 4 Syllables

Meaning

"work, industriousness"

Origin: Germanic

Cultural Roots

English German Spanish

Quick Stats

Popularity Rank
#3
Total SSA Count
12,740
Syllables
4
Formality
Formal
Nicknames
Amy, Millie, Mel

Playground Safety Score

✓ All Clear
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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

Amelia Rank #3
Theo Rank #80

Amelia is more popular, ranked #3 vs #80 for Theo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Amelia ___

  • Amelia Rose
  • Amelia Grace
  • Amelia Jane
  • Amelia Kate
  • Amelia Anne
  • Amelia Louise

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 Amelia

Oliver Henry Theodore Charlotte 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 Amelia or Theo more popular?

Amelia is more popular, ranked #3 compared to Theo at #80 in the United States.

What do Amelia and Theo mean?

Amelia means "work, industriousness" (Germanic origin). Theo means "gift of God" (Greek (theodoros) origin).

Are Amelia and Theo boy or girl names?

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

More Comparisons

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