Is Koy a boy or girl name?

Koy is a boy’s name. Of the 979 Americans recorded with the name since 1880, 3.5% were girls and 96.5% were boys.

Koy

Recorded 1970–2025 · United States

Koy was most popular in 1997, when 46 American babies were given the name — ranking #4,559 that year. In 2025 it ranked #10,985, with 18 births. Across 1880–2025 the Social Security Administration has recorded 979 people named Koy.

Koy over time

Births per year. The dot marks Koy’s peak in 1997. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Koy a boy’s or a girl’s name?

Across the whole record Koy is a boy’s name — 3.5% of the 979 Americans given it were girls and 96.5% were boys. In births since 2016 it is 0% girls and 100% boys.

Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.

Names that peaked alongside Koy

Where Koy is most concentrated

How much more common the name is in each state than across the country as a whole.

Texas 7.4×

Explore further

See Koy on the interactive charts

Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org