placenamesDallyhaysy
Dál Uí Chathasaigh
An unusual inherited name and a documented Volunteer march give glimpses of this small north Dublin settlement.
The name
These Irish name elements are associated with this record in the Logainm glossary.
An element’s translation is a clue, rather than a complete explanation of the name. Its form and meaning depend on local history and the full Irish name.
Recorded forms
- Dál Uí Chathasaigh · Irish · main form · validated name
- Dallyhaysy · English · main form
- Delahasey · English · main form · local name
Place & story
A surname preserved in the landscape
The Placenames Database records Dallyhaysy as Dál Uí Chathasaigh. In his study of Irish place-names formed from surnames, Brian Ó Doibhlin discusses this particular name as a possible reference to the Casey kindred. He cautiously interprets the full name as referring to Casey’s tribe, and suggests that this would make it an early formation. That is a scholarly interpretation of the name, rather than evidence for a securely dated foundation of the settlement. [2] [3]
A meeting on the road to Naul
On 26 July 1914, a column of 150 Volunteers set out from Balbriggan for a recruiting meeting at Naul, accompanied by St Patrick’s brass band. Near Dalahasey, as the place is spelt in Peter Francis Whearity’s study, eighty more Volunteers joined from a side road. Whearity suggests, without treating it as certain, that these men came from Balrothery. The march continued towards a gathering that also drew contingents from County Meath. [4]
A small rural cluster
Fingal’s 2023–2029 Development Plan includes Dallyhaysy among its designated rural clusters in the Balbriggan area. This classification distinguishes the settlement from the council’s larger rural villages. Its planning objective provides for limited infill housing to meet local needs while retaining the cluster’s rural character, with particular attention to the layout and design of new houses. [5]
Geographic information
- Place type
- Population centre
- County
- Dublin
- Barony
- Balrothery East
- Civil parish
- Balscaddan
- Within
- Balscadden
- Within
- Newtown
- Coordinates
- 53.59756, -6.22965
- Logainm ID
- 1384618 ↗
Sources & further reading
- Logainm.ie — Dallyhaysy. Place names and geographic record, licensed under CC BY 4.0.
- Dál Uí Chathasaigh / Dallyhaysy · Placenames Database of Ireland
- Gaelic Surnominal Place-Names in Ireland and Their Reflection in Argentina (2021), p.175 · Brian Ó Doibhlin
- The Irish Volunteers in north Co. Dublin, 1913–17 (2011), p.40 · Peter Francis Whearity
- Fingal Development Plan 2023–2029, section 14.12.1, p.558 · Fingal County Council
Name record retrieved 2026-10-25 · Source record modified 2026-08-05. How this page was prepared.