Ki
Recorded 1946–2023 · United States
Ki was most popular in 2005, when 23 American babies were given the name — ranking #9,077 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 535 people named Ki.
Ki over time
How old is the name Ki?
Ki first appears in Social Security Administration records in 1946, which makes it about 79 years old as a recorded American name. It has been recorded in 56 of the 80 years since.
How many people are named Ki?
The Social Security Administration has recorded 535 American births named Ki 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 509 are estimated to be alive today.
How many babies were named Ki in 2025?
Ki was not recorded in 2025. The SSA withholds any name given to fewer than five babies in a year, so fewer than five American babies were given it.
Is Ki getting more or less popular?
Ki is too rare for a direction to mean much. It averaged 9 births a year across 2021–2025 against 10 a year a decade earlier — at these counts a single baby moves the percentage, and any year under five births is withheld at source.
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.
Is Ki a boy’s or a girl’s name?
Across the whole record Ki is a unisex name — 20.4% of the 535 Americans given it were girls and 79.6% were boys. In births since 2016 it is 15% girls and 85% 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.
How old is someone named Ki?
Roughly 509 Americans named Ki are alive today — 95% of everyone ever recorded with the name. The median is 25 years old, and half are between 16 and 39.
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.
Explore further
See Ki on the interactive charts
About · Privacy · Contact
Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org