UK boy's name
Dyllan
A diminutive form of the Welsh name Dylan, meaning "great sea".
For 2026, the newest official UK baby-name figures on this page are from 2019. That release is the current official benchmark rather than a forecast.
Dyllan is a boy's name in the UK records. People looking for Dyllan popularity in 2026 should use the latest official release, which is 2019 in this profile. In that release it ranked #4702, with 3 babies registered with the name. Its strongest year in the published records was 2008, with 21 births.
This profile covers 203 England and Wales registrations across 24 recorded years from 1996 to 2019. The figures come from ONS England and Wales and NRS Scotland, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
The latest count is about 14% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 217 living people in the UK are called Dyllan. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2020 or 2026.
Key insights
- • Dyllan ranked #4702 for boys in England and Wales in 2019, with 3 registrations.
- • The name peaked in 2008, when 21 boys were registered as Dyllan.
- • Dyllan ranks best in Scotland in the latest published regional snapshot for that area, where it placed #400 in 2005.
- • About 217 living people in the UK are estimated to have Dyllan as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4702
2019
Births in 2019
3
Latest year
Peak year
2008
21 births
Estimated living
217
2026
Meaning
What does Dyllan mean?
The name Dyllan is a variant spelling of the Welsh name Dylan, which originated from the Welsh elements "dy" meaning "great" and "llan" meaning "born." This combination suggests that the name Dylan means "great birth" or "great sailor." The name Dylan has its roots in Welsh mythology and is associated with the legendary figure Dylan Ail Don, a sea god or sea deity in Welsh folklore.
The earliest recorded use of the name Dylan dates back to the 6th century AD, where it appears in the Welsh Triads, a collection of traditional stories and legends. One of these triads mentions Dylan Ail Don as one of the three blessed youths of the Isle of Britain. The name gained popularity in Wales during the Middle Ages and was later adopted in other parts of Britain and beyond.
One of the earliest known individuals with the name Dylan was Dylan ap Gwilym, a Welsh poet who lived from around 1300 to 1370. He is considered one of the greatest poets of medieval Wales and is renowned for his cywyddau, a complex poetic form he helped popularize.
Another notable bearer of the name was Dylan Thomas, a renowned Welsh poet and writer born in 1914 and died in 1953. He is widely regarded as one of the most influential poets of the 20th century, famous for works such as "Under Milk Wood" and "Do not go gentle into that good night."
In the realm of music, Dylan Marlais Thomas, born in 1949, is a Welsh singer-songwriter and guitarist known for his contribution to the folk and folk-rock genres. He has released several albums and has been actively performing since the 1970s.
Moving to a different field, Dylan Wiliam, born in 1946, is a British educator and academic who has made significant contributions to the field of educational assessment and formative assessment practices. He is a professor emeritus at the UCL Institute of Education and has authored numerous books and articles on educational topics.
Another notable figure with the name Dylan is Dylan Alcott, an Australian paralympic tennis player and wheelchair basketball player born in 1990. He has won numerous Grand Slam titles and gold medals in both sports, and is widely regarded as one of the greatest athletes with a disability in Australian history.
Sourced from namecensus.com.
Popularity
Dyllan over time
The chart below shows babies named Dyllan registered in England and Wales in the years where the name appears in the published records, from 1996 to 2019. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Dyllan, the clearest high point is 2008. The latest England and Wales figure is 3 births in 2019, compared with 21 at the peak.
Babies born per year
Decades
Dyllan by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Dyllan was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2010s | #3133 | 70 | 10 |
| 2000s | #1806 | 102 | 10 |
| 1990s | #1535 | 31 | 4 |
Geography
Where Dyllan is most common
The bars show the latest published local birth counts for Dyllan. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.
Dyllan ranks best in Scotland in the latest published regional snapshot for that area, where it placed #400 in 2005.
Across the UK
Dyllan in Scotland and Northern Ireland
Scotland (NRS)
#400 in 2005
4 years of NRS records, 16 total registered
Related
Names similar to Dyllan
- Daniel 120,900
- Dylan 60,836
- David 37,852
- Dominic 20,480
- Declan 11,657
- Dexter 11,627
- Danny 8,434
- Dean 5,329
- Dillon 4,113
- Douglas 3,773
- Dominik 3,494
- Damian 3,486
FAQ
Dyllan: questions and answers
How popular is the name Dyllan in the UK right now?
In 2019, Dyllan was ranked #4702 for boys in England and Wales, with 3 births registered.
When was Dyllan most popular?
The peak year on record was 2008, with 21 babies registered as Dyllan in England and Wales.
What is the meaning and origin of Dyllan?
A diminutive form of the Welsh name Dylan, meaning "great sea".
How many people are called Dyllan in the UK?
A total of 203 babies have been registered as Dyllan across the 24 years of ONS England & Wales records shown here, plus 16 more in Scotland.
Where is Dyllan most common?
In the latest published local rankings, Dyllan ranks best in Scotland, where it placed #400 in 2005. The regional bars on this page use birth counts, so they also reflect the size of each region.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.