Tilley
Tilley was given to 32 girls in 2025, #4,448 among girls’ names; 261 Americans have been recorded with it since 2005 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Tilley by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Tilley?
#4,448 among girls’ names, 2025
Tilley rose from #14,369 in 2015 to #4,448 in 2025 among girls’ names; its share of girls born rose from 3.9 to 19.9 per million.
32 babies in 2025, the peak
Tilley peaked in 2025, when 32 girls were given it, #4,448 among girls’ names. In 2024 it went to 26 girls.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2025 | 32 | #4,448 | 19.9 |
| 2024 | 26 | #5,132 | 16.0 |
| 2023 | 28 | #4,852 | 17.5 |
| 2022 | 22 | #5,777 | 13.4 |
| 2021 | 21 | #5,926 | 12.8 |
| 2020 | 11 | #9,484 | 6.8 |
| 2019 | 20 | #6,157 | 11.9 |
| 2018 | 9 | #11,353 | 5.3 |
| 2017 | 15 | #7,806 | 8.7 |
| 2016 | 10 | #10,789 | 5.6 |
Every recorded year (17)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2015 | 7 | #14,369 | 3.9 |
| 2014 | 17 | #7,276 | 9.5 |
| 2013 | 8 | #13,048 | 4.6 |
| 2012 | 12 | #9,668 | 6.8 |
| 2010 | 13 | #9,182 | 7.3 |
| 2009 | 5 | #19,970 | 2.7 |
| 2005 | 5 | #18,964 | 2.7 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Tilley a boy’s or a girl’s name?
Tilley has been recorded only for girls: SSA lists no boys with the name in 17 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Tilley: the SSA national file counts each sex separately.
How many people are named Tilley, and how old are they?
An estimated 259 Americans named Tilley and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 6 years old and half are between 3 and 11. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 179 people named Tilley (164 women and girls, 15 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 123 born in the U.S. The Census count is 46% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
How common is the spelling Tilley?
Tilley is a less common spelling of Tillie: SSA has recorded 261 Tilley and 15,765 Tillie since 1880.
Of these 4 names spelled alike, given to 18,811 babies since 1880, Tilley is the third most given (1.4% of them). In 2025 it was given to 32 of their 511 babies (6.3%), again the third most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Tilley
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Tilley and names like it
- Compare Tilley and TillieBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sTilley peaked in 2025.
- Texas’s most given namesThe state where SSA recorded the most babies named Tilley since 1910.
- The top names of 2025The year the most babies were named Tilley.
- The names of Generation AlphaMost people named Tilley alive today were born 2013-2025.
- Names starting with TMost given first.