Castro vs Rena

Baby Name Comparison — 2026

Rena

Girl #2,691 Most Popular 2 Syllables

Meaning

"song, joyful song"

Origin: Hebrew

Cultural Roots

Hebrew Japanese Greek English

Quick Stats

Popularity Rank
#2,691
Total SSA Count
64
Syllables
2
Formality
Moderate
Nicknames
Ren

Playground Safety Score

✓ All Clear
Full profile for Rena →

Popularity Comparison

Castro Rank #17,549
Rena Rank #2,691

Rena is more popular, ranked #2691 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

Rena ___

  • Rena Marie
  • Rena Grace
  • Rena Louise
  • Rena Sofia
  • Rena Claire
  • Rena Elise

Sibling Name Ideas

Names that pair well as siblings.

If you choose Castro

Diego Mateo Isabella Valentina

If you choose Rena

Leah Mara Naomi Joel Eli

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 Rena more popular?

Rena is more popular, ranked #2691 compared to Castro at #17549 in the United States.

What do Castro and Rena mean?

Castro means "castle, fortress" (Latin origin). Rena means "song, joyful song" (Hebrew origin).

Are Castro and Rena boy or girl names?

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

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