Humanverse

Chi vs Chistopher

American parents have registered 1,446 Chistophers since 1880, against 1,326 Chis. But in 2025 it was Chi that was commoner, 26 babies to 7.

Babies given each name, 1880–2025

Births per year: Chi against Chistopher, 1880 to 2025 0 15 30 45 60 1880 1900 1920 1940 1960 1980 2000 2020

Chi Chistopher

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Of the 67 years in which either name was published, Chistopher for 37 years and Chi for 30 years. The lead changed hands 15 times.

10 shorter spells of a year or two are folded into the spans above rather than listed separately.

Side by side

  Chi Chistopher
Total US births 1,3261,446
Most in one year 4859
Babies in 2025 267
Estimated living today 1,3001,300
Median age today 3442
Peak year 20231985
Best rank 4,363rd girls1,242nd boys
Rank in 2025 6,546th9,714th
First recorded 19701958
Girls / boys 763 / 5630 / 1,446

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Chistophers alive today are over 42; half the Chis are over 34. That is 8 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Chi and Chistopher.