Dillen
Dillen was last recorded in 2023, when 5 babies were given it; 747 Americans have been recorded with it between 1991 and 2023 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Dillen by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Dillen?
Unranked in 2025
Its last boys’ rank on record is #12,689, in 2023; SSA lists a name only in years with 5 or more births.
59 babies in 2003, the peak
Dillen peaked in 2003, when 59 babies were given it (40 boys, #2,553 among boys’ names). It was not recorded in 2025.
Births by sex.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2023 | 5 | #12,689 | 2.9 |
| 2021 | 5 | #12,616 | 2.9 |
| 2019 | 5 | #12,641 | 2.8 |
| 2018 | 7 | #9,934 | 3.9 |
| 2017 | 6 | #11,110 | 3.2 |
| 2016 | 12 | #6,823 | 6.3 |
| 2015 | 6 | #11,020 | 3.1 |
| 2014 | 13 | #6,382 | 6.8 |
| 2013 | 14 | #5,990 | 7.4 |
| 2012 | 17 | #5,300 | 9.0 |
Every recorded year (31)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2011 | 16 | #5,484 | 8.4 |
| 2010 | 17 | #5,304 | 8.9 |
| 2009 | 27 | #3,848 | 13.6 |
| 2008 | 21 | #4,576 | 10.3 |
| 2007 | 29 | #3,623 | 14.0 |
| 2006 | 33 | #3,239 | 16.1 |
| 2005 | 29 | #3,398 | 14.5 |
| 2004 | 39 | #2,706 | 19.6 |
| 2003 | 40 | #2,553 | 20.2 |
| 2002 | 23 | #3,693 | 11.8 |
| 2001 | 32 | #2,877 | 16.5 |
| 2000 | 33 | #2,750 | 16.8 |
| 1999 | 29 | #2,883 | 15.1 |
| 1998 | 29 | #2,799 | 15.2 |
| 1997 | 22 | #3,274 | 11.7 |
| 1996 | 33 | #2,391 | 17.4 |
| 1995 | 28 | #2,632 | 14.7 |
| 1994 | 35 | #2,264 | 18.1 |
| 1993 | 26 | #2,724 | 13.3 |
| 1992 | 38 | #2,050 | 19.0 |
| 1991 | 22 | #2,925 | 10.9 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Dillen a boy’s or a girl’s name?
Of the 747 Americans recorded as Dillen, 7% are girls and 93% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Dillen: the SSA national file counts each sex separately.
How many people are named Dillen, and how old are they?
An estimated 732 Americans named Dillen and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 23 years old and half are between 19 and 29. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 688 people named Dillen (73 women and girls, 615 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 727 born in the U.S. The Census count is 5% below that prediction.
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).
Names spelled alike
Of these 8 names spelled alike, given to 90,332 babies since 1880, Dillen is the eighth most given (<1% of them). In 2025 none of their 681 babies recorded by SSA was a Dillen (SSA lists a name only with 5 or more babies of one sex).
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 Dillen
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 Dillen and names like it
- Compare Dillen and DillonBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sDillen peaked in 2003.
- California’s most given namesThe state where SSA recorded the most babies named Dillen since 1910.
- The top names of 2003The year the most babies were named Dillen.
- The names of Generation ZMost people named Dillen alive today were born 1997-2012.
- Names starting with DMost given first.