Dillan
The boy's name Dillan has been in the national records since 1975, with 7,387 births to its name. In 2025 it ranked 3,848th. About 7,200 Dillans are alive in the United States today, and half of them are over 22.
Popularity, 1880–2025
girls named Dillan boys named Dillan
By the numbers
- Total US births
- 7,387
- Estimated living today
- 7,200
- Median age today
- 22
- Peak year
- 1992
- Best rank
- 553rd
- Rank in 2025
- 3,848th
- First recorded
- 1975
- Girls / boys
- 393 / 6,994
How old the living Dillans are
born that year still alive today
Of the 7,387 babies given the name since 1975, about 7,200 are alive — 98 in every hundred. Roughly 2,200 of them are children and 0 are 65 or over. The dotted line is the median: half were born before 2003 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Variant of Dylan.
Etymology from Wiktionary, used under CC BY-SA 4.0.
Where Dillan is most common
Relative to how many babies each state records, Dillan is most concentrated in Utah (3.2×), Florida (2.3×), Louisiana (2.3×), Georgia (1.8×).
Total births recorded in each state since 1910. Browse names by state.
Names of 1992
The most popular boys’ names the year Dillan peaked:
Dillan elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales boys | Dillan | 913 | 631st |
| Scotland boys | Dillan | 91 | 246th |
| France boys | Dillan | 70 | 5,772nd |
| Ireland boys | Dillan | 25 | 242nd |
| Northern Ireland boys | Dillan | 13 | 243rd |
| England and Wales girls | Dillan | 3 | 5,201st |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Related names
Dillan against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.