Brook vs Kay

Baby Name Comparison — 2026

Brook

Boy #6,381 Most Popular 1 Syllable

"small stream, flowing water"

Origin: Old English

English American

✓ All Clear

Boy #6,417 Most Popular 1 Syllable

"rejoice; pure"

Origin: Latin

English American Welsh

✓ All Clear

Brook Rank #6,381

Kay Rank #6,417

Brook is more popular, ranked #6381 vs #6417 for Kay.

Is Brook or Kay more popular?

Brook is more popular, ranked #6381 compared to Kay at #6417 in the United States.

What do Brook and Kay mean?

Brook means "small stream, flowing water" (Old English origin). Kay means "rejoice; pure" (Latin origin).

Are Brook and Kay boy or girl names?

Brook is primarily a boy name. Kay is primarily a boy name.