Dyllan
Dyllan is given to both girls and boys: 7 girls and 11 boys were given it in 2025 (#12,247 among girls’ names and #7,317 among boys’, #11,086 among all names counting both); 3,802 Americans have been recorded with it since 1986 (Social Security Administration, published May 2026).
An estimated 3,730 Americans named Dyllan and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 23 years old and half are between 16 and 29.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Dyllan by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Dyllan?
#7,317 among boys’ names, 2025
Dyllan fell from #2,614 in 2015 to #7,317 in 2025 among boys’ names; its share of boys born fell from 24.5 to 6.4 per million.
187 babies in 1999, the peak
Dyllan peaked in 1999, when 187 babies were given it (181 boys, #833 among boys’ names). The 18 births of 2025 (girls and boys) are 10% of that peak.
Births by sex.
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2025 | 7 | #12,247 | 11 | #7,317 |
| 2024 | 6 | #13,948 | 12 | #6,941 |
| 2023 | 6 | #13,898 | 24 | #4,372 |
| 2022 | 8 | #11,483 | 17 | #5,493 |
| 2021 | 11 | #9,131 | 26 | #4,039 |
| 2020 | 7 | #12,497 | 25 | #4,044 |
| 2019 | 8 | #11,644 | 26 | #4,036 |
| 2018 | 11 | #9,338 | 21 | #4,639 |
| 2017 | 14 | #7,962 | 43 | #2,810 |
| 2016 | 17 | #6,995 | 57 | #2,308 |
Every recorded year (40)
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2015 | 21 | #6,091 | 47 | #2,614 |
| 2014 | 18 | #6,790 | 70 | #2,024 |
| 2013 | 21 | #6,079 | 72 | #1,934 |
| 2012 | 22 | #5,959 | 73 | #1,950 |
| 2011 | 30 | #4,714 | 65 | #2,065 |
| 2010 | 37 | #4,047 | 113 | #1,457 |
| 2009 | 33 | #4,509 | 122 | #1,395 |
| 2008 | 25 | #5,612 | 129 | #1,338 |
| 2007 | 20 | #6,629 | 135 | #1,292 |
| 2006 | 16 | #7,587 | 109 | #1,431 |
| 2005 | 22 | #5,646 | 147 | #1,118 |
| 2004 | 18 | #6,564 | 140 | #1,128 |
| 2003 | 30 | #4,335 | 146 | #1,062 |
| 2002 | 8 | #11,421 | 150 | #1,023 |
| 2001 | 13 | #7,857 | 156 | #982 |
| 2000 | under 5 | 129 | #1,089 | |
| 1999 | 6 | #13,145 | 181 | #833 |
| 1998 | 14 | #6,818 | 132 | #1,022 |
| 1997 | 5 | #14,386 | 126 | #1,012 |
| 1996 | 8 | #9,834 | 128 | #978 |
| 1995 | 6 | #12,206 | 105 | #1,109 |
| 1994 | 10 | #8,307 | 113 | #1,045 |
| 1993 | 7 | #10,907 | 124 | #965 |
| 1992 | 8 | #9,731 | 168 | #807 |
| 1991 | 7 | #10,592 | 92 | #1,145 |
| 1990 | under 5 | 30 | #2,323 | |
| 1989 | under 5 | 13 | #4,091 | |
| 1988 | under 5 | 6 | #6,646 | |
| 1987 | under 5 | 9 | #4,662 | |
| 1986 | under 5 | 10 | #4,214 |
Ranks: girls’ names and boys’ names ranked separately in each year’s SSA file; “under 5” is a year SSA did not list the name for that sex.
Is Dyllan a boy’s or a girl’s name?
Of the 3,802 Americans recorded as Dyllan, 13% are girls and 87% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Dyllan: the SSA national file counts each sex separately.
How many people are named Dyllan, and how old are they?
3,730 alive in 2026, estimated
That is 98% of the 3,802 Americans ever recorded as Dyllan. The median Dyllan alive today is 23 years old; half are between 16 and 29.
The 2020 Census counted 3,110 people named Dyllan (414 women and girls, 2,696 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 3,599 born in the U.S. The Census count is 14% 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 | 813 |
| Generation Z | 1997-2012 | 2,310 |
| Generation Alpha | 2013-2025 | 601 |
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 Dyllan born?
The states with the most babies named Dyllan are California, Texas and Florida, with 51% of its births recorded by state since 1910.
| State | Since 1910 | Rank, boys | vs. national |
|---|---|---|---|
| California | 364 | not ranked | 0.7× |
| Texas | 305 | not ranked | 0.8× |
| Florida | 175 | not ranked | 0.9× |
| New York | 96 | not ranked | 0.4× |
| Pennsylvania | 80 | not ranked | 0.5× |
| Ohio | 75 | not ranked | 0.5× |
| Michigan | 71 | not ranked | 0.6× |
| Washington | 68 | not ranked | 0.8× |
| Illinois | 55 | not ranked | 0.3× |
| Indiana | 38 | not ranked | 0.4× |
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ 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 Dyllan with the births its national share predicts year by year, for states with at least 100 births of the name.
How common is the spelling Dyllan?
Dyllan is a less common spelling of Dylan: SSA has recorded 3,802 Dyllan and 434,951 Dylan since 1880.
Of these 8 names spelled alike, given to 525,392 babies since 1880, Dyllan is the sixth most given (<1% of them). In 2025 it was given to 18 of their 7,221 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 Dyllan
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 Dyllan and names like it
- Compare Dyllan and DylanBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1990sDyllan peaked in 1999.
- California’s most given namesThe state where SSA recorded the most babies named Dyllan since 1910.
- The top names of 1999The year the most babies were named Dyllan.
- The names of Generation ZMost people named Dyllan alive today were born 1997-2012.
- Names starting with DMost given first.