Maddilyn
Maddilyn was given to 24 girls in 2025, #5,334 among girls’ names; 1,350 Americans have been recorded with it since 1996 (Social Security Administration, published May 2026).
An estimated 1,340 Americans named Maddilyn and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 11 years old and half are between 7 and 15.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Maddilyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Maddilyn?
#5,334 among girls’ names, 2025
Maddilyn fell from #2,035 in 2015 to #5,334 in 2025 among girls’ names; its share of girls born fell from 54.3 to 14.9 per million.
101 babies in 2016, the peak
Maddilyn peaked in 2016, when 101 girls were given it, #1,981 among girls’ names. The 24 births of 2025 are 24% of that peak.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2025 | 24 | #5,334 | 14.9 |
| 2024 | 38 | #3,937 | 23.5 |
| 2023 | 39 | #3,879 | 24.3 |
| 2022 | 62 | #2,773 | 37.8 |
| 2021 | 72 | #2,475 | 43.9 |
| 2020 | 65 | #2,616 | 40.2 |
| 2019 | 81 | #2,264 | 48.3 |
| 2018 | 77 | #2,376 | 45.3 |
| 2017 | 86 | #2,214 | 49.8 |
| 2016 | 101 | #1,981 | 57.0 |
Every recorded year (29)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2015 | 97 | #2,035 | 54.3 |
| 2014 | 88 | #2,166 | 49.3 |
| 2013 | 59 | #2,887 | 33.6 |
| 2012 | 61 | #2,852 | 34.6 |
| 2011 | 68 | #2,626 | 38.7 |
| 2010 | 58 | #2,960 | 32.6 |
| 2009 | 52 | #3,227 | 28.3 |
| 2008 | 55 | #3,106 | 29.1 |
| 2007 | 41 | #3,891 | 21.3 |
| 2006 | 23 | #5,839 | 12.1 |
| 2005 | 10 | #10,622 | 5.4 |
| 2004 | 23 | #5,479 | 12.5 |
| 2003 | 14 | #7,829 | 7.7 |
| 2002 | 10 | #9,963 | 5.6 |
| 2001 | 11 | #9,115 | 6.1 |
| 2000 | 14 | #7,407 | 7.7 |
| 1999 | 7 | #12,146 | 3.9 |
| 1998 | 8 | #10,721 | 4.5 |
| 1996 | 6 | #12,806 | 3.4 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Maddilyn a boy’s or a girl’s name?
Maddilyn has been recorded only for girls: SSA lists no boys with the name in 29 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Maddilyn: the SSA national file counts each sex separately.
How many people are named Maddilyn, and how old are they?
1,340 alive in 2026, estimated
That is 99% of the 1,350 Americans ever recorded as Maddilyn. The median Maddilyn alive today is 11 years old; half are between 7 and 15.
The 2020 Census counted 940 people named Maddilyn (939 women and girls, 1 man or boy). SSA’s births carried forward to Census day, April 1, 2020, predict 1,059 born in the U.S. The Census count is 11% below that prediction. Possible reasons: people who give a short form or another name to the Census, and a survival estimate that can run high.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Millennials | 1981-1996 | 6 |
| Generation Z | 1997-2012 | 451 |
| Generation Alpha | 2013-2025 | 883 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
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 Maddilyn?
Maddilyn is a less common spelling of Madilyn: SSA has recorded 1,350 Maddilyn and 23,632 Madilyn since 1880.
Of these 8 names spelled alike, given to 180,654 babies since 1880, Maddilyn is the seventh most given (<1% of them). In 2025 it was given to 24 of their 4,661 babies (<1%), the fifth 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 Maddilyn
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 Maddilyn and names like it
- Compare Maddilyn and MadilynBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2010sMaddilyn peaked in 2016.
- Texas’s most given namesThe state where SSA recorded the most babies named Maddilyn since 1910.
- The top names of 2016The year the most babies were named Maddilyn.
- The names of Generation AlphaMost people named Maddilyn alive today were born 2013-2025.
- Names starting with MMost given first.