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William vs Williams

American parents have registered 4,215,725 Williams since 1880, against 6,150 Williamses. William is still ahead, with 10,552 babies in 2025.

Babies given each name, 1880–2025

Births per year: William against Williams, 1880 to 2025 0 20k 40k 60k 80k 1880 1900 1920 1940 1960 1980 2000 2020

William Williams

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

William has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 2023, when William had 10,679 and Williams had 57.

Side by side

  William Williams
Total US births 4,215,7256,150
Most in one year 67,15686
Babies in 2025 10,55240
Estimated living today 2.2 million3,700
Median age today 5538
Peak year 19471950
Best rank 4th boys741st boys
Rank in 2025 9th3,036th
First recorded 18801880
Girls / boys 16,029 / 4,199,69624 / 6,126

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 Williams alive today are over 55; half the Williamses are over 38. That is 17 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 William Williams
England and Wales 119,44139
France 79,9602,855
Belgium 4,7196

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: William and Williams.