1 Murphy 62,600
2 Kelly 55,900
3 Sullivan 43,600
4 Walsh 41,700
5 Smith 33,700
6 O’Brien 33,400
7 Byrne 33,300
8 Ryan 32,000
9 Connor 31,200
10 O’Neill 29,100
11 Reilly 29,000
12 Doyle 23,000
13 McCarthy 22,300
14 Gallagher 21,800
15 Doherty 20,800
16 Kennedy 19,900
17 Lynch 19,800
18 Murray 19,600
19 Quinn 18,200
20 Moore 17,700
21 McLaughlin 17,500
22 Carroll 17,400
23 Connolly 17,000
24 Daly 17,000
25 Connell 16,600
26 Wilson 16,300
27 Dunne 16,300
28 Brennan 16,000
29 Burke 15,900
30 Collins 15,700
31 Campbell 15,600
32 Clarke 15,400
33 Johnston 15,200
34 Hughes 14,900
35 Farrell 14,700
36 Fitzgerald 14,700
37 Brown 14,600
38 Martin 14,600
39 Maguire 14,400
40 Nolan 14,300
41 Flynn 14,300
42 Thompson 14,200
43 Callaghan 14,000
surnames in Ireland in 1890
44 O’Donnell 13,900
45 Duffy 13,600
46 Mahoney 13,500
47 Boyle 13,000
48 Healy 13,000
49 Shea 13,000
50 White 13,000
51 Sweeney 12,500
52 Hayes 12,300
53 Kavanagh 12,200
54 Power 12,100
55 McGrath 11,900
56 Moran 11,800
57 Brady 11,600
58 Stewart 11,400
59 Casey 11,300
60 Foley 11,200
61 Fitzpatrick 11,100
62 Leary 11,000
63 McDonnell 11,000
64 McMahon 10,700
65 Donnelly 10,700
66 Regan 10,500
67 Donovan 9,900
68 Burns 9,800
69 Flanagan 9,800
70 Mullan 9,800
71 Barry 9,700
72 Kane 9,700
73 Robinson 9,700
74 Cunningham 9,600
75 Griffin 9,600
76 Kenny 9,600
77 Sheehan 9,600
78 Ward 9,500
79 Whelan 9,500
80 Lyons 9,400
81 Reid 9,200
82 Graham 9,100
83 Higgins 9,100
84 Cullen 9,000
85 Keane 9,000
86 King 9,000
87 Maher 9,000
88 McKenna 9,000
89 Bell 8,800
90 Scott 8,700
91 Hogan 8,600
92 Keeffe 8,600
93 Magee 8,600
94 McNamara 8,600
95 McDonald 8,500
96 McDermott 8,400
97 Moloney 8,300
98 Rourke 8,300
99 Buckley 8,200
100 Dwyer 8,100