O' Brien Name Origin, Meaning and Family History

Discover how your O' Brien ancestors earned their living and spread across the country. Find out more about your family history by using the Free Search box.

Surname Distribution

Census frequency by county

Name Concentrations Within England and Wales

O' Brien Surname Statistics


Top Professions for the O' Brien family

Profession Census Frequency
Plasterer 2
House Carpenter 1
Independent 1
Milk Carrier 1
Labourer 1
Carter 1

O' Brien Surname Variants Ranking

Rank Surname Match Census Frequency
1 O Brien 88% 4,889
2 O Neill 38% 2,288
3 O Connor 13% 2,195
4 O Neil 38% 2,053
5 O Donnell 22% 1,424
6 O Hara 25% 1,225
7 O Brian 75% 1,034
8 O Connell 22% 829
9 O' Brien 100% 734
10 O Hare 38% 666
11 O Leary 25% 566
12 O Neal 25% 407
13 O Niel 50% 386
14 O Conner 25% 382
15 O' Neill 50% 368
16 O Sullivan 30% 300
17 O Shea 38% 299
18 O Malley 25% 296
19 O Reilly 25% 286
20 O' Connor 33% 277
21 O Grady 38% 249
22 O' Hara 38% 249
23 O' Neil 50% 249
24 O Rourke 25% 228
25 O Bryan 63% 223
26 O Keefe 25% 214
27 O' Donnell 40% 206
28 O Toole 25% 180
29 O Donald 13% 163
30 O Keeffe 13% 150
31 O Donoghue 10% 140
32 O' Brian 88% 130
33 O Niell 38% 128
34 O' Connell 40% 128
35 O Callaghan 18% 123
36 O Dell 25% 115
37 O Boyle 38% 114
38 O Hanlon 25% 111
39 Owe 25% 105
40 O' Leary 38% 104
41 O Hagan 38% 100

Did you know?

The surname O' Brien is the 9th most popular variant of O Brien.

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