Mariano vs Theodore

Baby Name Comparison — 2026

Mariano

Boy #1,150 Most Popular 4 Syllables

Meaning

"of the gens Maria, manly"

Origin: Latin

Cultural Roots

Italian Spanish Argentine Portuguese

Quick Stats

Popularity Rank
#1,150
Total SSA Count
182
Syllables
4
Formality
Formal
Nicknames
Mario, Mari, Nano

Playground Safety Score

✓ All Clear
Full profile for Mariano →

Popularity Comparison

Mariano Rank #1,150
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1150 for Mariano.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Mariano ___

  • Mariano José
  • Mariano Antonio
  • Mariano Luis
  • Mariano Carlos
  • Mariano Rafael
  • Mariano Sebastián

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 Mariano

Luciana Valentina Santiago Emilio Catalina

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 Mariano or Theodore more popular?

Theodore is more popular, ranked #4 compared to Mariano at #1150 in the United States.

What do Mariano and Theodore mean?

Mariano means "of the gens Maria, manly" (Latin origin). Theodore means "divine gift" (Greek origin).

Are Mariano and Theodore boy or girl names?

Mariano is primarily a boy name. Theodore is primarily a boy name.

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