Humanverse

Chi

About 1,326 American babies have been named Chi since 1970, most of them around 2023. It is given to both boys and girls. In 2025 it ranked 6,546th. About 1,300 Chis are alive in the United States today, and half of them are over 34.

Popularity, 1880–2025

Births per year, 1880 to 2025 0 8 16 24 32 1880 1900 1920 1940 1960 1980 2000 2020

girls named Chi boys named Chi

Girls and boys called Chi

Share of the name given to girls, 1880 to 2025 0% 25% 50% 75% 100% 1880 1900 1920 1940 1960 1980 2000 2020

years more girls than boys years more boys than girls

Both, throughout, without either side ever taking it over: 763 girls and 563 boys in all, and in 2025 the split was 17 to 9.

The girls’ share of each year’s babies of the name, in the 27 years in which at least 25 babies got it. The line touches the middle more often than there are crossings marked: a year or two on the other side is not a name changing hands, and only a move that holds for 5 counted years and reaches 60/40 is recorded as one. All 581 names that changed sex.

By the numbers

Total US births
1,326
Estimated living today
1,300
Median age today
34
Peak year
2023
Best rank
4,363rd
Rank in 2025
6,546th
First recorded
1970
Girls / boys
763 / 563

How old the living Chis are

Born with the name each year, and how many of them are alive today, 1880 to 2025 0 13 25 38 50 1880 1900 1920 1940 1960 1980 2000 2020

born that year still alive today

Of the 1,326 babies given the name since 1970, about 1,300 are alive — 97 in every hundred. The dotted line is the median: half were born before 1991 and half after.

An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.

Notable Chis

People named Chi with articles in the most Wikipedia languages. Data from Wikidata (CC0).

Where Chi is most common

Relative to how many babies each state records, Chi is most concentrated in California (7.9×), New York (1.8×).

Total births recorded in each state since 1910. Browse names by state.

Names of 2023

The most popular girls’ names the year Chi peaked:

All the names of 2023

Chi elsewhere

CountrySpelling BirthsBest rank
England and Wales boys Chi 166 976th
France boys Chi 80 1,247th
England and Wales girls Chi 74 3,005th
Scotland boys Chi 65 210th
Belgium boys Chi 11 992nd
France girls Chi 5 1,844th
Ireland boys Chi 3 324th
Ireland girls Chi 3 655th

Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.

Chi among the living

How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.

Country Spelling First forename Any forename
Finland girls Chi 8 70
Finland boys Chi 44 57

A count of people on a register – Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.

Related names

Chi against another name

Two names on one chart, with the year one overtook the other.

Compare Chi with a name of your own

Try it on yourself

Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.