Irelyn
Irelyn was given to 32 girls in 2025, #4,393 among girls’ names; 1,594 Americans have been recorded with it since 1996 (Social Security Administration, published May 2026).
An estimated 1,580 Americans named Irelyn and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 14 years old and half are between 8 and 18.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Irelyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Irelyn?
#4,393 among girls’ names, 2025
Irelyn fell from #2,725 in 2015 to #4,393 in 2025 among girls’ names; its share of girls born fell from 36.4 to 19.9 per million.
176 babies in 2008, the peak
Irelyn peaked in 2008, when 176 girls were given it, #1,371 among girls’ names. The 32 births of 2025 are 18% of that peak.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2025 | 32 | #4,393 | 19.9 |
| 2024 | 45 | #3,478 | 27.8 |
| 2023 | 45 | #3,487 | 28.0 |
| 2022 | 45 | #3,502 | 27.4 |
| 2021 | 61 | #2,800 | 37.2 |
| 2020 | 82 | #2,206 | 50.7 |
| 2019 | 70 | #2,520 | 41.7 |
| 2018 | 60 | #2,819 | 35.3 |
| 2017 | 55 | #2,981 | 31.9 |
| 2016 | 78 | #2,396 | 44.0 |
Every recorded year (29)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2015 | 65 | #2,725 | 36.4 |
| 2014 | 79 | #2,333 | 44.2 |
| 2013 | 71 | #2,520 | 40.5 |
| 2012 | 62 | #2,814 | 35.2 |
| 2011 | 73 | #2,490 | 41.5 |
| 2010 | 93 | #2,127 | 52.3 |
| 2009 | 132 | #1,689 | 71.9 |
| 2008 | 176 | #1,371 | 93.1 |
| 2007 | 62 | #2,900 | 32.2 |
| 2006 | 43 | #3,636 | 22.6 |
| 2005 | 32 | #4,295 | 17.3 |
| 2004 | 33 | #4,205 | 18.0 |
| 2003 | 18 | #6,404 | 9.9 |
| 2002 | 19 | #5,972 | 10.6 |
| 2001 | 23 | #5,068 | 12.8 |
| 2000 | 8 | #11,116 | 4.4 |
| 1999 | 10 | #9,049 | 5.6 |
| 1998 | 15 | #6,486 | 8.5 |
| 1996 | 7 | #11,002 | 4.0 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Irelyn a boy’s or a girl’s name?
Irelyn 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 Irelyn: the SSA national file counts each sex separately.
How many people are named Irelyn, and how old are they?
1,580 alive in 2026, estimated
That is 99% of the 1,594 Americans ever recorded as Irelyn. The median Irelyn alive today is 14 years old; half are between 8 and 18.
The 2020 Census counted 1,208 people named Irelyn (1,208 women and girls, 0 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,295 born in the U.S. The Census count is 7% below that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Millennials | 1981-1996 | 7 |
| Generation Z | 1997-2012 | 792 |
| Generation Alpha | 2013-2025 | 783 |
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).
Where are babies named Irelyn born?
The states with the most babies named Irelyn are California, Pennsylvania and Texas, with 51% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| California | 108 | not ranked | 0.5× |
| Pennsylvania | 56 | not ranked | 0.9× |
| Texas | 52 | not ranked | 0.3× |
| Michigan | 33 | not ranked | 0.7× |
| Ohio | 24 | not ranked | 0.4× |
| Florida | 22 | not ranked | 0.2× |
| Wisconsin | 19 | not ranked | 0.7× |
| New York | 16 | not ranked | 0.2× |
| Indiana | 11 | not ranked | 0.3× |
| Illinois | 10 | not ranked | 0.1× |
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 Irelyn 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 2 names spelled alike, given to 3,334 babies since 1880, Irelyn is the second most given (48% of them). In 2025 it was given to 32 of their 74 babies (43%), again the second 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 Irelyn
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 Irelyn and names like it
- Compare Irelyn and IrelynnBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sIrelyn peaked in 2008.
- California’s most given namesThe state where SSA recorded the most babies named Irelyn since 1910.
- The top names of 2008The year the most babies were named Irelyn.
- The names of Generation ZMost people named Irelyn alive today were born 1997-2012.
- Names starting with IMost given first.