UK boy's name
Iestyn
A Welsh masculine given name deriving from the old Welsh word "ieuengtyn".
For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.
Iestyn is a boy's name in the UK records. People looking for Iestyn popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #1859, with 13 babies registered with the name. Its strongest year in the published records was 2004, with 138 births.
This profile covers 1,532 England and Wales registrations across 29 recorded years from 1996 to 2024. 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 9% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 1,520 living people in the UK are called Iestyn. 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 2025 or 2026.
Key insights
- • Iestyn ranked #1859 for boys in England and Wales in 2024, with 13 registrations.
- • The name peaked in 2004, when 138 boys were registered as Iestyn.
- • About 1,520 living people in the UK are estimated to have Iestyn as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#1859
2024
Births in 2024
13
Latest year
Peak year
2004
138 births
Estimated living
1,520
2026
Meaning
What does Iestyn mean?
The given name Iestyn has its origins in the Welsh language and culture. It can be traced back to the Old Welsh name "Iestin" or "Ieistin", which is believed to be derived from the Latin name "Justinus", meaning "just" or "upright".
Iestyn was a popular name among the Welsh nobility and ruling families during the Middle Ages. One of the earliest recorded instances of the name can be found in the Brut y Tywysogyon, a chronicle of the princes of Wales, where an individual named Iestyn ap Gwrgant is mentioned as the last ruler of the kingdom of Morgannwg in the 11th century.
In the 12th century, Iestyn ap Rhys was a Welsh prince and Lord of Gŵyr and Cydweli, who played a significant role in the political affairs of Wales during that period. Another notable bearer of the name was Iestyn ap Cadwgan, a 12th-century Welsh nobleman and landowner in Glamorgan.
The name Iestyn also appears in several Welsh literary works, such as the Mabinogion, a collection of medieval Welsh tales and myths. One of the characters in the story of Culhwch and Olwen is named Iestyn, the son of Mwrthefyr.
In more recent history, Iestyn ap Rhys Jones (1671-1735) was a Welsh clergyman and scholar who published a collection of Welsh proverbs and sayings. Another notable figure was Iestyn ap Gwilym (1827-1878), a Welsh poet and writer who contributed significantly to the preservation and promotion of Welsh culture and literature.
Iestyn Edwards (1924-1985) was a Welsh actor and director known for his roles in films such as "The Wind and the Lion" and "The Elephant Man". Additionally, Iestyn Harris (born 1976) is a former professional rugby league and rugby union player who represented Wales in both codes.
These are just a few examples of individuals throughout history who have borne the name Iestyn, highlighting its enduring presence in Welsh culture and its significance as a given name with deep historical roots.
Sourced from namecensus.com.
Popularity
Iestyn over time
The chart below shows babies named Iestyn registered in England and Wales in the years where the name appears in the published records, from 1996 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Iestyn, the clearest high point is 2004. The latest England and Wales figure is 13 births in 2024, compared with 138 at the peak.
Babies born per year
Decades
Iestyn by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Iestyn 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 |
|---|---|---|---|
| 2020s | #1598 | 76 | 5 |
| 2010s | #783 | 484 | 10 |
| 2000s | #384 | 850 | 10 |
| 1990s | #599 | 122 | 4 |
Notable bearers
Famous people named Iestyn
-
Iestyn Edwards
comedian
British comedian
2000-
-
Iestyn Harris
rugby union player
Welsh rugby union player
1998-
-
Iestyn Davies
singer; musician; opera singer
British opera singer
1979-
-
Iestyn Thomas
rugby union player
Welsh rugby union footballer
1976-
-
Iestyn Harris
rugby union player; rugby league player
English rugby league footballer and coach, and rugby union footballer
1976-
-
Iestyn Jones
archaeologist
archaeologist
1963-
-
Iestyn Hughes
photographer; librarian; archivist
Welsh photographer, librarian and archivist.
1955-
-
Iestyn Garlick
actor; television producer; television presenter
Welsh actor, producer and television presenter
1952-
Related
Names similar to Iestyn
- Isaac 49,129
- Ibrahim 14,115
- Ismail 4,679
- Isaiah 4,629
- Idris 3,810
- Ivan 3,146
- Isa 2,943
- Ian 2,805
- Ilyas 2,552
- Ieuan 2,515
- Ibraheem 2,384
- Ioan 2,295
FAQ
Iestyn: questions and answers
How popular is the name Iestyn in the UK right now?
In 2024, Iestyn was ranked #1859 for boys in England and Wales, with 13 births registered.
When was Iestyn most popular?
The peak year on record was 2004, with 138 babies registered as Iestyn in England and Wales.
What is the meaning and origin of Iestyn?
A Welsh masculine given name deriving from the old Welsh word "ieuengtyn".
How many people are called Iestyn in the UK?
A total of 1,532 babies have been registered as Iestyn across the 29 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.