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Giles vs Gillian

American parents have registered 16,127 Gillians since 1880, against 4,732 Gileses. Gillian is still ahead, with 47 babies in 2025.

Babies given each name, 1880–2025

Births per year: Giles against Gillian, 1880 to 2025 0 300 600 900 1.2k 1880 1900 1920 1940 1960 1980 2000 2020

Giles Gillian

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 145 years in which either name was published, Giles for 80 years and Gillian for 65 years. The lead changed hands once.

Side by side

  Giles Gillian
Total US births 4,73216,127
Most in one year 861,030
Babies in 2025 1247
Estimated living today 2,10016,000
Median age today 4926
Peak year 19181999
Best rank 667th boys303rd girls
Rank in 2025 6,803rd3,296th
First recorded 18801922
Girls / boys 0 / 4,73216,059 / 68

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 Gileses alive today are over 49; half the Gillians are over 26. That is 23 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 Giles Gillian
Scotland 248,717
Ireland 345,687
France 190940
England and Wales 554262
Belgium 11328
Northern Ireland 328

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: Giles and Gillian.