Castro vs Willa

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 →

Popularity Comparison

Castro Rank #17,549
Willa Rank #423

Willa is more popular, ranked #423 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

Willa ___

  • Willa Grace
  • Willa Rose
  • Willa Jane
  • Willa Mae
  • Willa Claire
  • Willa Kate

Sibling Name Ideas

Names that pair well as siblings.

If you choose Castro

Diego Mateo Isabella Valentina

If you choose Willa

Hazel June Cecily Theodore Edmund

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 Willa more popular?

Willa is more popular, ranked #423 compared to Castro at #17549 in the United States.

What do Castro and Willa mean?

Castro means "castle, fortress" (Latin origin). Willa means "resolute protector" (Germanic origin).

Are Castro and Willa boy or girl names?

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

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