Ky vs Sydney

Baby Name Comparison — 2026

Ky

Boy #4,301 Most Popular 1 Syllable

"sky (variant of Kai)"

Origin: Multiple

American Scandinavian Scottish

✓ All Clear

Boy #4,249 Most Popular 2 Syllables

"wide island"

Origin: Old English sid (wide) and eg (island)

American English Australian

✓ All Clear

Ky Rank #4,301

Sydney Rank #4,249

Sydney is more popular, ranked #4249 vs #4301 for Ky.

Is Ky or Sydney more popular?

Sydney is more popular, ranked #4249 compared to Ky at #4301 in the United States.

What do Ky and Sydney mean?

Ky means "sky (variant of Kai)" (Multiple origin). Sydney means "wide island" (Old English sid (wide) and eg (island) origin).

Are Ky and Sydney boy or girl names?

Ky is primarily a boy name. Sydney is primarily a boy name.