Donnacha is a distinctive choice, ranked #4275 in 2025. Your child is likely to be the only Donnacha in their class.
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UK Rank 2025
#4275
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About the Name Donnacha
Donnacha is climbing rapidly up the charts, having climbed 696 places in just five years. Its best recorded rank was #1786 in 2018 — and current momentum suggests it could challenge that mark again. The name has been a regular feature in UK records since 2007.
Donnacha is rare in the UK, so your child is very likely to be the only Donnacha in their class.
⭐ Famous People Named Donnacha
Donnacha O'Brien — Donnacha O'Brien is an Irish racehorse trainer and former jockey who competed in Flat racing.
Donnacha Dennehy — Donnacha Dennehy is an Irish composer and leader of the Crash Ensemble specializing in contemporary classical music.
Donnacha O'Dea — Donnacha "The Don" O'Dea is an Irish professional poker 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 Donnacha
Unlikely. With around 4 UK babies named Donnacha per year, your child will almost certainly be the only Donnacha in their class, and possibly the only one in the whole school.
Donnacha is declining: down 1,315 places since 2020, to #4,275 in 2025. It peaked at #1,786 in 2018.
Donnacha 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 Donnacha include: Donnacha O'Brien, Donnacha Dennehy and Donnacha O'Dea. Short summaries for each appear below.
Donnacha does not appear in the US top 1,000 baby names, making it a distinctively British choice — your child is unlikely to encounter American Donnachas in the wild.
4
UK babies named Donnacha (2025)
< 1
Expected classmates with this name (class of 28)
~0.0
In a school of 600
↓ 1315 places
Rank change (last 5 years)
🏫 Who else is in the room?
In a typical UK class of 28, highlighted children share the name Donnacha
Almost certainly the only Donnacha in the class
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UK Popularity (2007–2025)
Rank and birth count · ONS official data
No US data available for this name
✨ Similar names to Donnacha
Names with a similar style — each with their own classroom story