Kior vs Cassidy

Baby Name Comparison — 2026

Kior

Boy #2,243 Most Popular 2 Syllables

"dark one"

Origin: Scottish Gaelic (via Keir)

American Contemporary

✓ All Clear

Boy #2,323 Most Popular 3 Syllables

"curly-haired"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Kior Rank #2,243

Cassidy Rank #2,323

Kior is more popular, ranked #2243 vs #2323 for Cassidy.

Is Kior or Cassidy more popular?

Kior is more popular, ranked #2243 compared to Cassidy at #2323 in the United States.

What do Kior and Cassidy mean?

Kior means "dark one" (Scottish Gaelic (via Keir) origin). Cassidy means "curly-haired" (Irish Gaelic origin).

Are Kior and Cassidy boy or girl names?

Kior is primarily a boy name. Cassidy is primarily a boy name.