Humanverse

Tilda vs Tilly

American parents have registered 2,699 Tillys since 1880, against 2,040 Tildas. Tilly is still ahead, with 302 babies in 2025.

Babies given each name, 1880–2025

Births per year: Tilda against Tilly, 1880 to 2025 0 80 160 240 320 1880 1900 1920 1940 1960 1980 2000 2020

Tilda Tilly

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 135 years in which either name was published, Tilda for 95 years and Tilly for 40 years. The lead changed hands 5 times.

Side by side

  Tilda Tilly
Total US births 2,0402,699
Most in one year 35302
Babies in 2025 17302
Estimated living today 7002,600
Median age today 615
Peak year 19242025
Best rank 1,382nd girls884th girls
Rank in 2025 6,546th884th
First recorded 18801912
Girls / boys 2,040 / 02,699 / 0

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 Tildas alive today are over 61; half the Tillys are over 5. That is 56 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 Tilda Tilly
England and Wales 34611,781
Scotland 3514
Ireland 13278
Switzerland 21914
France 16560
Belgium 12293

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: Tilda and Tilly.