Billie vs Rhea

Baby Name Comparison — 2026

Billie

Girl #694 Most Popular 2 Syllables

Meaning

"resolute protection, strong-willed guardian"

Origin: Old Germanic via English

Cultural Roots

English American Australian

Quick Stats

Popularity Rank
#694
Total SSA Count
405
Syllables
2
Formality
Casual
Nicknames
Bill, Bee

Playground Safety Score

✓ All Clear
Full profile for Billie →

Rhea

Girl #616 Most Popular 2 Syllables

Meaning

"flowing, streaming"

Origin: Greek

Cultural Roots

English American Greek Indian

Quick Stats

Popularity Rank
#616
Total SSA Count
484
Syllables
2
Formality
Moderate
Nicknames
Rea

Playground Safety Score

✓ All Clear
Full profile for Rhea →

Popularity Comparison

Billie Rank #694
Rhea Rank #616

Rhea is more popular, ranked #616 vs #694 for Billie.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Billie ___

  • Billie Jean
  • Billie Jo
  • Billie Mae
  • Billie Ray
  • Billie Grace
  • Billie Rose

Rhea ___

  • Rhea Grace
  • Rhea Jane
  • Rhea Mae
  • Rhea Josephine
  • Rhea Eloise
  • Rhea Charlotte

Sibling Name Ideas

Names that pair well as siblings.

If you choose Billie

Bobbie Frankie Charlie Stevie Georgie

If you choose Rhea

Orion Theo Athena Phoebe Luna

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 Billie or Rhea more popular?

Rhea is more popular, ranked #616 compared to Billie at #694 in the United States.

What do Billie and Rhea mean?

Billie means "resolute protection, strong-willed guardian" (Old Germanic via English origin). Rhea means "flowing, streaming" (Greek origin).

Are Billie and Rhea boy or girl names?

Billie is primarily a girl name. Rhea is primarily a girl name.

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← Full profile: Billie ← Full profile: Rhea Browse all baby names