Leidy
Leidy was given to 21 girls in 2025, #5,833 among girls’ names; 871 Americans have been recorded with it since 1974 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Leidy by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Leidy mean?
Wiktionary, English section
Leidy is “a unisex given name transferred from the surname.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Leidy?
#5,833 among girls’ names, 2025
Leidy fell from #4,930 in 2015 to #5,833 in 2025 among girls’ names; its share of girls born fell from 15.7 to 13.1 per million.
50 babies in 2006, the peak
Leidy peaked in 2006, when 50 girls were given it, #3,290 among girls’ names. The 21 births of 2025 are 42% of that peak.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2025 | 21 | #5,833 | 13.1 |
| 2024 | 30 | #4,617 | 18.5 |
| 2023 | 23 | #5,480 | 14.3 |
| 2022 | 23 | #5,563 | 14.0 |
| 2021 | 18 | #6,553 | 11.0 |
| 2020 | 23 | #5,409 | 14.2 |
| 2019 | 28 | #4,848 | 16.7 |
| 2018 | 26 | #5,087 | 15.3 |
| 2017 | 31 | #4,535 | 18.0 |
| 2016 | 46 | #3,443 | 26.0 |
Every recorded year (40)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2015 | 28 | #4,930 | 15.7 |
| 2014 | 22 | #5,903 | 12.3 |
| 2013 | 24 | #5,584 | 13.7 |
| 2012 | 19 | #6,754 | 10.8 |
| 2011 | 22 | #6,049 | 12.5 |
| 2010 | 33 | #4,456 | 18.6 |
| 2009 | 34 | #4,430 | 18.5 |
| 2008 | 40 | #3,975 | 21.2 |
| 2007 | 38 | #4,101 | 19.8 |
| 2006 | 50 | #3,290 | 26.3 |
| 2005 | 32 | #4,320 | 17.3 |
| 2004 | 26 | #5,011 | 14.2 |
| 2003 | 26 | #4,881 | 14.2 |
| 2002 | 22 | #5,365 | 12.2 |
| 2001 | 18 | #6,205 | 10.0 |
| 2000 | 22 | #5,241 | 12.1 |
| 1999 | 15 | #6,688 | 8.5 |
| 1998 | 18 | #5,705 | 10.2 |
| 1997 | 13 | #7,096 | 7.5 |
| 1996 | 13 | #6,962 | 7.4 |
| 1995 | 8 | #10,106 | 4.5 |
| 1994 | 7 | #11,231 | 3.9 |
| 1993 | 11 | #7,813 | 6.1 |
| 1992 | 10 | #8,454 | 5.4 |
| 1991 | 12 | #7,203 | 6.4 |
| 1990 | 13 | #6,691 | 6.8 |
| 1989 | 8 | #9,233 | 4.3 |
| 1988 | 7 | #9,861 | 3.9 |
| 1987 | 5 | #12,359 | 2.9 |
| 1974 | 6 | #8,250 | 4.1 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Leidy a boy’s or a girl’s name?
Leidy has been recorded only for girls: SSA lists no boys with the name in 40 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Leidy: the SSA national file counts each sex separately.
How many people are named Leidy, and how old are they?
An estimated 862 Americans named Leidy and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 17 years old and half are between 9 and 23. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 4,777 people named Leidy (4,745 women and girls, 32 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 732 born in the U.S. The Census count is 6.5 times 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).
Where are babies named Leidy born?
The states with the most babies named Leidy are California, Texas and Florida, with 90% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| California | 104 | not ranked | 0.9× |
| Texas | 62 | not ranked | 0.7× |
| Florida | 16 | not ranked | 0.3× |
| New York | 15 | not ranked | 0.3× |
| New Jersey | 5 | not ranked | 0.2× |
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Leidy with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 8 names spelled alike, given to 6,577 babies since 1880, Leidy is the second most given (13% of them). In 2025 it was given to 21 of their 71 babies (30%), the most given that year.
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 Leidy
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 Leidy and names like it
- Compare Leidy and LedaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sLeidy peaked in 2006.
- California’s most given namesThe state where SSA recorded the most babies named Leidy since 1910.
- From surnamesWiktionary’s origin for Leidy: every such name, by how often it is given.
- The top names of 2006The year the most babies were named Leidy.
- The names of Generation ZMost people named Leidy alive today were born 1997-2012.
- Names starting with LMost given first.