Day vs Si

Baby Name Comparison — 2026

Day

Boy #20,203 Most Popular 1 Syllable

"daylight, the day"

Origin: Old English

English American British

✓ All Clear

Boy #20,580 Most Popular 1 Syllable

"God has heard"

Origin: Hebrew

Chinese Vietnamese Hebrew American

15 High Risk

{:type=>:rhyme, :severity=>:medium, :message=>"'Si' rhymes with 'pee'"}

Day Rank #20,203

Si Rank #20,580

Day is more popular, ranked #20203 vs #20580 for Si.

Is Day or Si more popular?

Day is more popular, ranked #20203 compared to Si at #20580 in the United States.

What do Day and Si mean?

Day means "daylight, the day" (Old English origin). Si means "God has heard" (Hebrew origin).

Are Day and Si boy or girl names?

Day is primarily a boy name. Si is primarily a boy name.