Dillan
- Gender
- Boy
- Say it
- DIL-on
- Origin
- Irish
- UK rank, 2025
- #3,021 for boys
- US rank, 2025
- #3,847 for boys
Dillan is a boys' name of Irish origin. In 2025 it ranked 3,021st for boys in the UK (7 babies) and 3,847th for boys in the US (28 babies).
Where does Dillan come from?
Irish: spelling of Dillon; Irish surname of uncertain origin; also a spelling of Dylan
Meaning borrowed from Dillon. More on Wiktionary.
Is Dillan a girl's or a boy's name?
Dillan is a boys' name. In 2025, it was given to 7 boys in the UK and 9 girls and 28 boys in the US.
How popular is Dillan in the UK?
- Rank in 2025
- #3,021among boys
- Babies in 2025
- 7about 1 in 43,000 boys
- Five-year trend
- Fallingdown 39% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 7 boys in the UK were named Dillan, making it the 3,021st most popular name for boys. Five years earlier, in 2020, it was 2,185th. Its busiest year was 2011, with 57 boys.
Half of all the boys named Dillan in the UK since 1996 were born between 2002 and 2012. It was already well used in 1996, when the records begin, so earlier boys aren't counted.
In 2025, 852 boys in the UK were given Dillan or a name that sounds the same. With every name's spellings counted this way, that ranks #73, up from #3,021 for this spelling alone.
Among boys in 2025, it was 2,938th in England and Wales.
Dillan in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 7 | #3,021 |
| 2024 | 9 | #2,515 |
| 2023 | 6 | #3,279 |
| 2022 | 16 | #1,639 |
| 2021 | 14 | #1,791 |
| 2020 | 10 | #2,185 |
| 2019 | 14 | #1,756 |
| 2018 | 12 | #1,981 |
| 2017 | 12 | #2,037 |
| 2016 | 29 | #1,085 |
| 2015 | 27 | #1,112 |
| 2014 | 33 | #969 |
| 2013 | 54 | #685 |
| 2012 | 51 | #718 |
| 2011 | 57 | #660 |
| 2010 | 49 | #711 |
| 2009 | 52 | #672 |
| 2008 | 55 | #633 |
| 2007 | 38 | #796 |
| 2006 | 50 | #631 |
| 2005 | 46 | #632 |
| 2004 | 55 | #525 |
| 2003 | 47 | #556 |
| 2002 | 41 | #566 |
| 2001 | 47 | #487 |
| 2000 | 40 | #548 |
| 1999 | 42 | #531 |
| 1998 | 36 | #569 |
| 1997 | 30 | #625 |
| 1996 | 37 | #520 |
How popular is Dillan in the US?
- Rank in 2025
- #3,847among boys
- Babies in 2025
- 28about 1 in 61,000 boys
- Five-year trend
- Fallingdown 36% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 28 boys in the US were named Dillan, making it the 3,847th most popular name for boys. Five years earlier, in 2020, it was 2,436th. Its busiest year was 1992, with 341 boys. It first appears in the records in 1975. 9 girls were also named Dillan in 2025 (10,104th for girls).
2025 had fewer boys named Dillan than any year since 1987.
Half of all the boys named Dillan in the US since 1880 were born between 1996 and 2009, the years shaded on the chart below.
In 2025, 6,862 boys in the US were given Dillan or a name that sounds the same. With every name's spellings counted this way, that ranks #40, up from #3,847 for this spelling alone.
Girls were 3% of the babies named Dillan in the US in 1993, and 24% in 2025.
Dillan in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 28 | #3,847 |
| 2024 | 44 | #2,873 |
| 2023 | 42 | #2,951 |
| 2022 | 60 | #2,354 |
| 2021 | 53 | #2,498 |
| 2020 | 53 | #2,436 |
| 2019 | 50 | #2,581 |
| 2018 | 76 | #1,936 |
| 2017 | 68 | #2,049 |
| 2016 | 103 | #1,585 |
| 2015 | 118 | #1,438 |
| 2014 | 142 | #1,257 |
| 2013 | 129 | #1,326 |
| 2012 | 148 | #1,207 |
| 2011 | 171 | #1,088 |
| 2010 | 200 | #984 |
| 2009 | 283 | #793 |
| 2008 | 241 | #877 |
| 2007 | 254 | #839 |
| 2006 | 269 | #773 |
| 2005 | 272 | #742 |
| 2004 | 306 | #666 |
| 2003 | 297 | #668 |
| 2002 | 256 | #699 |
| 2001 | 260 | #691 |
| 2000 | 265 | #672 |
| 1999 | 300 | #608 |
| 1998 | 312 | #596 |
| 1997 | 287 | #612 |
| 1996 | 236 | #685 |
| 1995 | 270 | #625 |
| 1994 | 300 | #599 |
| 1993 | 295 | #602 |
| 1992 | 341 | #553 |
| 1991 | 222 | #677 |
| 1990 | 80 | #1,221 |
| 1989 | 49 | #1,610 |
| 1988 | 30 | #2,085 |
| 1987 | 19 | #2,721 |
| 1986 | 19 | #2,681 |
| 1985 | 6 | #5,780 |
| 1984 | 9 | #4,212 |
| 1983 | 6 | #5,481 |
| 1982 | 10 | #3,964 |
| 1981 | 0 | – |
| 1980 | 5 | #6,248 |
| 1979 | 5 | #6,054 |
| 1978 | 0 | – |
| 1977 | 0 | – |
| 1976 | 0 | – |
| 1975 | 5 | #5,462 |
Names like Dillan
Names given in the same years and the same naming tradition, with a similar sound.
Declan Aiden Keegan Ronan Finn Conan Kian Brogan Conlan Caelan Regan Keelan
Other spellings of Dillan
Dylan Dillon Dilan Dhilan Dillion Dyllan Dylon Dylin Dylann Dylen Dhylan
Names related to Dillan
More Irish names
Oscar Rowan Rory Maeve Ryan Nolan Quinn Orla Cody Erin Connor Casey Kennedy Callan Lennon Cillian
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Dillan: name meaning, origin and popularity”, https://www.nameling.co.uk/names/dillan, updated 20 October 2026.