surnames.ie

Surnames by county · Leinster

Most common surnames in County Dublin

Byrne was the commonest surname in Co. Dublin in 1911: 10,405 people, about one resident in 46. It was followed by Kelly, Murphy, Doyle and Smith.

Counts are people living in the county on census night, with spelling variants combined (Sullivan and O'Sullivan count as one name).

Donegal Waterford Dublin Kilkenny Carlow Limerick Louth Tipperary Roscommon Meath Wicklow Cavan Cork Clare Galway Mayo Sligo Leitrim Offaly Laois Kildare Kerry Monaghan Wexford Longford Westmeath Tyrone Antrim Armagh Fermanagh Londonderry Down

The 25 commonest names, 1911

#SurnamePeoplePer 10,00019011926
1 Byrne 10,405 217 1 1
2 Kelly 6,934 144 2 2
3 Murphy 6,160 128 3 3
4 Doyle 5,399 112 4 4
5 Smith 4,406 92 5 6
6 O'Brien 4,169 87 6 5
7 Walsh 3,871 81 8 7
8 O'Reilly 3,691 77 7 8
9 O'Connor 3,440 72 9 9
10 Dunne 3,234 67 10 12
11 Ryan 3,144 66 13 10
12 Kavanagh 3,111 65 12 13
13 O'Neill 3,090 64 11 11
14 Nolan 2,902 60 15 14
15 Farrell 2,831 59 14 15
16 Murray 2,617 55 16 16
17 Carroll 2,505 52 17 17
18 Moore 2,172 45 18 22
19 Whelan 2,047 43 21 18
20 Clarke 2,013 42 20 20
21 Kennedy 1,937 40 19 21
22 Brown 1,919 40 23 23
23 Brennan 1,868 39 27 19
24 Cullen 1,823 38 22 27
25 Brady 1,819 38 25 26

The 1901 and 1926 columns give the name's rank in the county in that year; a dash means it was outside the top 40. Linked names have a full page with meaning, Irish forms and history.

Names most typical of Dublin

Among the 100 commonest Irish surnames, these were the most over-represented in Co. Dublin in 1911, compared with their share of Ireland's population as a whole.

  1. Byrne 3.21× 10,405 people · 217 per 10,000
  2. Kavanagh 2.81× 3,110 people · 65 per 10,000
  3. Doyle 2.42× 5,399 people · 112 per 10,000
  4. Cullen 2.31× 1,823 people · 38 per 10,000
  5. Whelan 2.25× 2,047 people · 43 per 10,000
  6. Nolan 2.24× 2,902 people · 60 per 10,000
  7. Dunne 2.14× 3,234 people · 67 per 10,000
  8. Farrell 1.96× 2,831 people · 59 per 10,000
  9. McDonnell 1.73× 1,676 people · 35 per 10,000
  10. Carroll 1.59× 2,505 people · 52 per 10,000

Questions about surnames in Dublin

What is the most common surname in County Dublin?

In the 1911 census the most common surname in Co. Dublin was Byrne, with 10,405 people, or about one resident in 46. The next most common were Kelly, Murphy, Doyle and Smith. Byrne was still the commonest name in 1926.

Which surnames are most typical of County Dublin?

Compared with Ireland as a whole, the names most over-represented in Co. Dublin in 1911 (among the 100 commonest Irish surnames) were Byrne (3.21× the national rate), Kavanagh (2.81× the national rate), Doyle (2.42× the national rate).

Ancestors from County Dublin?

Browse every townland and household in Co. Dublin in the 1901, 1911 and 1926 censuses.

Dublin records on irishcensus.com