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Gilbert vs Gillis

American parents have registered 130,821 Gilberts since 1880, against 712 Gillises. Gilbert is still ahead, with 145 babies in 2025.

Babies given each name, 1880–2025

Births per year: Gilbert against Gillis, 1880 to 2025 0 600 1.2k 1.8k 2.4k 1880 1900 1920 1940 1960 1980 2000 2020

Gilbert Gillis

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

Gilbert 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 1900, when Gilbert had 145 and Gillis had 5.

Side by side

  Gilbert Gillis
Total US births 130,821712
Most in one year 2,13820
Babies in 2025 145under 5
Estimated living today 62,000240
Median age today 5970
Peak year 19301923
Best rank 90th boys1,753rd boys
Rank in 2025 1,328thunranked
First recorded 18801900
Girls / boys 673 / 130,1480 / 712

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 Gillises alive today are over 70; half the Gilberts are over 59. That is 11 years between them: two names in use at the same time, worn by two different generations.

Both names abroad

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

Country Gilbert Gillis
Belgium 56

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: Gilbert and Gillis.