Is Cai a boy or girl name?

Cai is a unisex name. Of the 1,945 Americans recorded with the name since 1880, 25.4% were girls and 74.5% were boys.

Cai

Recorded 1989–2025 · United States

Cai was most popular in 2022, when 131 American babies were given the name — ranking #2,983 that year. In 2025 it ranked #4,080, with 81 births. Across 1880–2025 the Social Security Administration has recorded 1,945 people named Cai.

Cai over time

Births per year. The dot marks Cai’s peak in 2022. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Cai a boy’s or a girl’s name?

Across the whole record Cai is a unisex name — 25.4% of the 1,945 Americans given it were girls and 74.5% were boys. In births since 2016 it is 24% girls and 76% 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 Cai

Where Cai is most concentrated

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

Explore further

See Cai on the interactive charts

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