Is Sidnee a boy or girl name?

Sidnee is a girl’s name. Of the 636 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Sidnee

Recorded 1940–2019 · United States

Sidnee was most popular in 1999, when 39 American babies were given the name — ranking #5,397 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 636 people named Sidnee.

Sidnee over time

Births per year. The dot marks Sidnee’s peak in 1999. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Sidnee a boy’s or a girl’s name?

Across the whole record Sidnee is a girl’s name — 100.0% of the 636 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% 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 Sidnee

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See Sidnee on the interactive charts

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