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Aldin vs Aldo

American parents have registered 17,743 Aldos since 1880, against 721 Aldins. Aldo is still ahead, with 241 babies in 2025.

Babies given each name, 1880–2025

Births per year: Aldin against Aldo, 1880 to 2025 0 200 400 600 800 1880 1900 1920 1940 1960 1980 2000 2020

Aldin Aldo

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

Aldo has been the commoner name in every year either was published, 1906 to 2025. The lead has never changed hands.

The closest they came was 1946, when Aldin had 6 and Aldo had 22.

Side by side

  Aldin Aldo
Total US births 72117,743
Most in one year 42666
Babies in 2025 9241
Estimated living today 67015,000
Median age today 1619
Peak year 20072007
Best rank 2,811th boys430th boys
Rank in 2025 8,243rd960th
First recorded 19171906
Girls / boys 0 / 72115 / 17,728

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 Aldos alive today are over 19; half the Aldins are over 16. That is 3 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 Aldin Aldo
France 653,695
Switzerland 24488
England and Wales 6167

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: Aldin and Aldo.