O' Brian Name Origin, Meaning and Family History

Discover how your O' Brian 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' Brian Surname Statistics


Top Professions for the O' Brian family

Profession Census Frequency
Soldier 1

O' Brian Surname Variants Ranking

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

Did you know?

The surname O' Brian is the 32nd most popular variant of O Brien.

Search for the O' Brian family