The most frequent family names with roots in County Dublin — names that spread through Ireland and the Irish diaspora:
Dublin takes its name from the Irish Dubh Linn — 'black pool' — the dark tidal pool at the confluence of the Liffey and the Poddle rivers where the Vikings established their settlement in 841 AD. The Norse founded a town that grew into a city that grew into the capital of Ireland, with a violence and complexity that the word 'pool' does nothing to suggest.
The county that surrounds the city is as much defined by what it sent away as by what it built. Dublin Port was the primary point of departure for emigrants throughout the nineteenth century. The coffin ships that followed the Famine years of 1845–1852 left from these docks. The steamship companies that followed took three million more.
Byrne is Dublin's most characteristic surname. The O'Byrnes were the kings of Leinster — specifically of the Wicklow mountains — and their territory pressed against Dublin's southern edge for centuries. Kelly and Murphy are common across Ireland but have deep Dublin roots. Doyle, from Ó Dubhghaill ('descendant of the dark foreigner'), reflects the Norse presence.
Dublin families spread to every corner of the Irish diaspora — New York, Boston, Chicago, Melbourne, London. The city's educated class — lawyers, clergy, schoolteachers — went disproportionately to America and shaped the Irish-American professional and political class of the nineteenth century.
Love Ireland covers Dublin's literary heritage, its Georgian architecture, its pubs, its contradictions. But also: the county's overlooked landscapes — the Wicklow border hills, the Northside fishing villages, the medieval churches that predate the capital by centuries.
Subscribe to Love Ireland — FreeIf your family came from County Dublin, here's where to start your research:
Common County Dublin surnames with dedicated pages on this site: