Castro vs Milagro

Baby Name Comparison — 2026

Castro

Boy #17,549 Most Popular 2 Syllables

Meaning

"castle, fortress"

Origin: Latin

Cultural Roots

Spanish Portuguese Latin American

Quick Stats

Popularity Rank
#17,549
Total SSA Count
6
Syllables
2
Formality
Moderate
Nicknames
Cas, Caz

Playground Safety Score

✓ All Clear
Full profile for Castro →

Milagro

Girl #2,347 Most Popular 4 Syllables

Meaning

"miracle"

Origin: Spanish/Latin

Cultural Roots

Spanish Latin American Catholic Mexican

Quick Stats

Popularity Rank
#2,347
Total SSA Count
78
Syllables
4
Formality
Formal
Nicknames
Mila, Millie, Lagro

Playground Safety Score

✓ All Clear
Full profile for Milagro →

Popularity Comparison

Castro Rank #17,549
Milagro Rank #2,347

Milagro is more popular, ranked #2347 vs #17549 for Castro.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Castro ___

  • Castro Luis
  • Castro Miguel
  • Castro Antonio
  • Castro Rafael
  • Castro Emilio

Milagro ___

  • Milagro Isabel
  • Milagro Luz
  • Milagro Carmen
  • Milagro Sofia
  • Milagro Elena
  • Milagro Rosa

Sibling Name Ideas

Names that pair well as siblings.

If you choose Castro

Diego Mateo Isabella Valentina

If you choose Milagro

Santiago Esperanza Consuelo Remedios Dolores

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 Castro or Milagro more popular?

Milagro is more popular, ranked #2347 compared to Castro at #17549 in the United States.

What do Castro and Milagro mean?

Castro means "castle, fortress" (Latin origin). Milagro means "miracle" (Spanish/Latin origin).

Are Castro and Milagro boy or girl names?

Castro is primarily a boy name. Milagro is primarily a girl name.

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← Full profile: Castro ← Full profile: Milagro Browse all baby names