UK boy's name
Deiniol
For 2026, the newest official UK baby-name figures on this page are from 2018. That release is the current official benchmark rather than a forecast.
Deiniol is a boy's name in the UK records. People looking for Deiniol popularity in 2026 should use the latest official release, which is 2018 in this profile. In that release it ranked #4749, with 3 babies registered with the name. Its strongest year in the published records was 2001, with 7 births.
This profile covers 55 England and Wales registrations across 14 recorded years from 1997 to 2018. The figures come from ONS England and Wales, 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 43% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 55 living people in the UK are called Deiniol. 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 2019 or 2026.
Key insights
- • Deiniol ranked #4749 for boys in England and Wales in 2018, with 3 registrations.
- • The name peaked in 2001, when 7 boys were registered as Deiniol.
- • About 55 living people in the UK are estimated to have Deiniol as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4749
2018
Births in 2018
3
Latest year
Peak year
2001
7 births
Estimated living
55
2026
Popularity
Deiniol over time
The chart below shows babies named Deiniol registered in England and Wales in the years where the name appears in the published records, from 1997 to 2018. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Deiniol, the clearest high point is 2001. The latest England and Wales figure is 3 births in 2018, compared with 7 at the peak.
Babies born per year
Decades
Deiniol by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Deiniol 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 | #4609 | 19 | 6 |
| 2000s | #2570 | 25 | 5 |
| 1990s | #2568 | 11 | 3 |
Related
Names similar to Deiniol
- 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
Deiniol: questions and answers
How popular is the name Deiniol in the UK right now?
In 2018, Deiniol was ranked #4749 for boys in England and Wales, with 3 births registered.
When was Deiniol most popular?
The peak year on record was 2001, with 7 babies registered as Deiniol in England and Wales.
How many people are called Deiniol in the UK?
A total of 55 babies have been registered as Deiniol across the 14 years of ONS England & Wales records shown here.
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.