Meaning not yet researched.
Dillan: US boys given the name each year, 1880 to 2025, from Social Security card applications. 28 in 2025. Its best rank was #553 in 1992.
US births per year · SSA card applications
Peaked at #553 in 1992; #3,871 in 2025. About 76% of babies named Dillan in 2025 were boys.
Baby name · US data 1880–2025
#3,871 for US boys in 2025. Its best year was 1992, at #553.
Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.
Dillan: US boys and girls given the name each year from 1880 to 2025. 28 boys in 2025. Peak: #553 in 1992 · most boys in one year: 341 (1992).
In 2025, 28 US boys were named Dillan, making it the 3,871st most common boys’ name of the year, down 987 places from #2,884 in 2024. That is 16 fewer than the 44 boys named Dillan in 2024. Its best rank for boys was #553, reached in 1992. That year also had the most boys given the name: 341. For comparison, it was #1,439 in 2015 and unranked in 1950.
In 2025, 9 US girls were named Dillan, making it the 10,312th most common girls’ name of the year, down 577 places from #9,735 in 2024. That is 1 fewer than the 10 girls named Dillan in 2024. Its best rank for girls was #4,337, reached in 2003. That year also had the most girls given the name: 30. For comparison, it was #12,143 in 2015 and unranked in 1950.
Social Security card records list Dillan in 47 years of the 146 from 1880 to 2025, starting in 1975 with 5 babies. In all, 7,387 US babies have been given the name, 5.3% of them girls and 95% boys. Its busiest decade was the 2000s, with 2,859 babies named Dillan.
Over the 10 years from 2016 to 2025, 577 US boys were named Dillan; the busiest of those years was 2016, with 103. In 2025 that was about 1 in 61,003 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Dylan (434,951 babies since 1880), Dillon (66,270 babies since 1880), Dilan (6,138 babies since 1880) and Dyllan (3,802 babies since 1880).
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.
No nicknames listed for Dillan in the open dataset we use.
Source: carltonnorthern/nicknames (Apache-2.0).
Births and national rank for each year SSA lists the name, newest first.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | 9 | #10,312 | 28 | #3,871 |
| 2024 | 10 | #9,735 | 44 | #2,884 |
| 2023 | 12 | #8,617 | 42 | #2,964 |
| 2022 | 11 | #9,216 | 60 | #2,358 |
| 2021 | 13 | #8,153 | 53 | #2,508 |
| 2020 | 12 | #8,536 | 53 | #2,442 |
| 2019 | 8 | #11,640 | 50 | #2,596 |
| 2018 | 14 | #7,878 | 76 | #1,943 |
| 2017 | 17 | #6,886 | 68 | #2,054 |
| 2016 | 9 | #11,105 | 103 | #1,590 |
| 2015 | 8 | #12,143 | 118 | #1,439 |
| 2014 | 13 | #8,601 | 142 | #1,258 |
| 2013 | 11 | #9,774 | 129 | #1,330 |
| 2012 | 16 | #7,555 | 148 | #1,208 |
| 2011 | 19 | #6,645 | 171 | #1,088 |
| 2010 | 24 | #5,665 | 200 | #985 |
| 2009 | 21 | #6,377 | 283 | #793 |
| 2008 | 29 | #5,050 | 241 | #877 |
| 2007 | 12 | #9,709 | 254 | #839 |
| 2006 | 9 | #11,700 | 269 | #773 |
| 2005 | 25 | #5,146 | 272 | #742 |
| 2004 | 18 | #6,565 | 306 | #667 |
| 2003 | 30 | #4,337 | 297 | #668 |
| 2002 | 7 | #12,571 | 256 | #699 |
| 2001 | 5 | #16,021 | 260 | #693 |
| 2000 | — | — | 265 | #673 |
| 1999 | — | — | 300 | #609 |
| 1998 | 6 | #12,897 | 312 | #597 |
| 1997 | 6 | #12,529 | 287 | #612 |
| 1996 | — | — | 236 | #688 |
| 1995 | 5 | #14,061 | 270 | #626 |
| 1994 | 5 | #14,045 | 300 | #600 |
| 1993 | 9 | #8,930 | 295 | #604 |
| 1992 | — | — | 341 | #553 |
| 1991 | — | — | 222 | #681 |
| 1990 | — | — | 80 | #1,227 |
| 1989 | — | — | 49 | #1,622 |
| 1988 | — | — | 30 | #2,100 |
| 1987 | — | — | 19 | #2,751 |
| 1986 | — | — | 19 | #2,708 |
| 1985 | — | — | 6 | #5,988 |
| 1984 | — | — | 9 | #4,293 |
| 1983 | — | — | 6 | #5,666 |
| 1982 | — | — | 10 | #4,020 |
| 1980 | — | — | 5 | #6,505 |
| 1979 | — | — | 5 | #6,303 |
| 1975 | — | — | 5 | #5,684 |
About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).