Donnacha
- Gender
- Boy
- Say it
- DUN-a-ka
- Origin
- Irish
- UK rank, 2025
- #1,220 for boys
- Style
- Big in Northern Ireland
Donnacha is a boys' name of Irish origin. In 2025 it ranked 1,220th for boys in the UK (25 babies).
What does Donnacha mean?
Irish: Irish Donnchadh, perhaps brown warrior
Donnchad, a son of Brian Boru, later ruled as king of Munster.
Is Donnacha a girl's or a boy's name?
Donnacha is a boys' name. In 2025, it was given to 25 boys in the UK. Too few girls were given it to be listed.
How popular is Donnacha in the UK?
- Rank in 2025
- 1,220th among boys
- Babies in 2025
- 25 about 1 in 12,000 boys
- Five-year trend
- Steady up 12% in five years
- Same name in a class
- under 1% chance among 15 boys
In 2025, 25 boys in the UK were named Donnacha, making it the 1,220th most popular name for boys. Five years earlier, in 2020, it was 1,007th. Its busiest year was 2021, with 40 boys.
Half of all the boys named Donnacha in the UK since 1996 were born between 2016 and 2022, the years shaded on the chart below.
Among boys in 2025, it was 4,212th in England and Wales and 112th in Northern Ireland.
Donnacha in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 25 | #1,220 |
| 2024 | 35 | #961 |
| 2023 | 33 | #1,008 |
| 2022 | 25 | #1,181 |
| 2021 | 40 | #868 |
| 2020 | 31 | #1,007 |
| 2019 | 22 | #1,261 |
| 2018 | 30 | #1,043 |
| 2017 | 18 | #1,490 |
| 2016 | 25 | #1,195 |
| 2015 | 13 | #1,888 |
| 2014 | 19 | #1,406 |
| 2013 | 14 | #1,715 |
| 2012 | 8 | #2,595 |
| 2011 | 12 | #1,890 |
| 2010 | 9 | #2,306 |
| 2009 | 9 | #2,241 |
| 2008 | 3 | #4,615 |
| 2007 | 5 | #3,231 |
| 2006 | 0 | – |
| 2005 | 0 | – |
| 2004 | 1 | #4,870 |
Names like Donnacha
Names given in the same years and the same naming tradition, with a similar sound.
Finn, Brody, Conan, Rowan, Darragh, Kayden, Cillian, Caelan, Kody, Connla, Cassian, Cody
Names related to Donnacha
More Irish names
Oscar, Rory, Maeve, Aiden, Ryan, Nolan, Quinn, Orla, Erin, Ronan, Connor, Declan, Casey, Kennedy, Callan, Lennon
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland) and Baby names (Northern Ireland Statistics and Research Agency). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Donnacha: name meaning, origin and popularity”, https://www.nameling.co.uk/names/donnacha, updated 20 October 2026.