Iestyn is a distinctive choice, ranked #2269 in 2025. Your child is likely to be the only Iestyn in their class.
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UK Rank 2025
#2269
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About the Name Iestyn
Iestyn has seen a notable decline in recent years, dropping 311 places in five years. It was most popular in 2004 at #237 โ parents choosing it today are making a deliberately counter-trend decision. The name has been a consistent presence in UK records since 1996.
Iestyn is rare in the UK, so your child is very likely to be the only Iestyn in their class.
โญ Famous People Named Iestyn
Iestyn Harris โ Iestyn Rhys Harris is a former dual-code international professional rugby league and rugby union footballer who played in the 1990s and 2000s, and coach in rugby league in the 2000s and 2010s.
Iestyn Davies โ Iestyn Davies is a British classical countertenor, active internationally as a Baroque music soloist and opera performer.
Iestyn Thomas โ Iestyn Thomas is a former Wales international rugby union player.
Biographical summaries are shortened from Wikipedia and are used under the CC BY-SA 4.0 licence; those summaries remain available under that same licence.
Frequently Asked Questions
Common questions about the name Iestyn
Unlikely. With around 10 UK babies named Iestyn per year, your child will almost certainly be the only Iestyn in their class, and possibly the only one in the whole school.
Iestyn is declining: down 721 places since 2020, to #2,269 in 2025. It peaked at #237 in 2004.
Iestyn is a distinctive choice sitting outside the mainstream UK top names. Parents choosing less common names often find their children appreciate the individuality as they grow up, rarely needing to add an initial to distinguish themselves.
Notable people named Iestyn include: Iestyn Harris, Iestyn Davies and Iestyn Thomas. Short summaries for each appear below.
Iestyn does not appear in the US top 1,000 baby names, making it a distinctively British choice โ your child is unlikely to encounter American Iestyns in the wild.
10
UK babies named Iestyn (2025)
< 1
Expected classmates with this name (class of 28)
~0.0
In a school of 600
↓ 721 places
Rank change (last 5 years)
🏫 Who else is in the room?
In a typical UK class of 28, highlighted children share the name Iestyn
Almost certainly the only Iestyn in the class
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UK Popularity (1996–2025)
Rank and birth count · ONS official data
No US data available for this name
✨ Similar names to Iestyn
Names with a similar style — each with their own classroom story
Iestyn Rhys Harris is a former dual-code international professional rugby league and rugby union footballer who played in the 1990s and 2000s, and coach in rugby league in the 2000s and 2010s.
Iestyn ap Gwrgant [หjษstษชn ap หgสrgant] (or Jestyn ap Gwrgant) (English: Iestyn, son of Gwrgant) was the last ruler of the Welsh kingdom of Morgannwg, which encompassed the counties of Glamorgan and Monmouthshire.
Iestyn (sometimes recorded as Iestin or the Latin form Justinus) was a Welsh hermit and confessor in the 6th or 7th century who is venerated as a saint.