Humanverse

Rudi vs Rudy

American parents have registered 51,402 Rudys since 1880, against 1,246 Rudis. Rudy is still ahead, with 387 babies in 2025.

Babies given each name, 1880–2025

Births per year: Rudi against Rudy, 1880 to 2025 0 250 500 750 1k 1880 1900 1920 1940 1960 1980 2000 2020

Rudi Rudy

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

Rudy has been the commoner name in every year either was published, 1882 to 2025. The lead has never changed hands.

The closest they came was 2022, when Rudi had 24 and Rudy had 300.

Side by side

  Rudi Rudy
Total US births 1,24651,402
Most in one year 41837
Babies in 2025 18387
Estimated living today 1,10037,000
Median age today 3245
Peak year 19781960
Best rank 2,375th boys278th boys
Rank in 2025 8,910th739th
First recorded 19311882
Girls / boys 485 / 7611,174 / 50,228

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 Rudys alive today are over 45; half the Rudis are over 32. That is 13 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.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Rudi Rudy
France 45020,510
England and Wales 1,9553,561
Scotland 402243
Northern Ireland 9369
Ireland 2212

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

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