Recorded 2008–2025 · United States
Nyx was most popular in 2022, when 109 American babies were given the name — ranking #3,388 that year. In 2025 it ranked #3,652, with 95 births. Across 1880–2025 the Social Security Administration has recorded 673 people named Nyx.
Nyx first appears in Social Security Administration records in 2008, which makes it about 17 years old as a recorded American name. It has been recorded in 17 of the 18 years since.
The Social Security Administration has recorded 673 American births named Nyx between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 668 are estimated to be alive today.
95 American babies were named Nyx in 2025, ranking #3,652 that year.
Nyx is rising. Across 2021–2025 it averaged 91 births a year, against 13 a year across 2011–2015 — a change of +597% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Nyx is a unisex name — 79.5% of the 673 Americans given it were girls and 20.5% were boys. In births since 2016 it is 78% girls and 22% 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.
Roughly 668 Americans named Nyx are alive today — 99% of everyone ever recorded with the name. The median is 4 years old, and half are between 2 and 7. That is a narrow band because Nyx is a young name — it only became common recently, so almost everyone carrying it is still a child or a young adult.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
See Nyx on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org