Cassidy vs Diamond

Baby Name Comparison — 2026

Diamond

Girl #1,619 Most Popular 2 Syllables

Meaning

"unconquerable, invincible"

Origin: Greek 'adamas'

Cultural Roots

American African-American English

Quick Stats

Popularity Rank
#1,619
Total SSA Count
129
Syllables
2
Formality
Casual
Nicknames
Di, Dee, Dia

Playground Safety Score

✓ All Clear
Full profile for Diamond →

Popularity Comparison

Cassidy Rank #476
Diamond Rank #1,619

Cassidy is more popular, ranked #476 vs #1619 for Diamond.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cassidy ___

  • Cassidy Rose
  • Cassidy Ann
  • Cassidy Jane
  • Cassidy Renee
  • Cassidy Elizabeth
  • Cassidy Marie

Diamond ___

  • Diamond Marie
  • Diamond Nicole
  • Diamond Renée
  • Diamond Jade
  • Diamond Pearl
  • Diamond Skye

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cassidy

Montana Savannah Ryder Colton Dakota

If you choose Diamond

Crystal Ruby Jasmine Destiny Precious

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 Cassidy or Diamond more popular?

Cassidy is more popular, ranked #476 compared to Diamond at #1619 in the United States.

What do Cassidy and Diamond mean?

Cassidy means "curly-haired" (Irish origin). Diamond means "unconquerable, invincible" (Greek 'adamas' origin).

Are Cassidy and Diamond boy or girl names?

Cassidy is primarily a girl name. Diamond is primarily a girl name.

More Comparisons

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← Full profile: Cassidy ← Full profile: Diamond Browse all baby names