Main country
United States
115,939 people
89.2% of total
Surname
Obrien
129,996 worldwide · 110 countries
129,996
Total population
110
Countries
1 in every 62,310
Frequency
Rarity
Common
Dispersion
Global
Top countries
1
United States
115,939
89.2%
2
Australia
4,147
3.2%
3
Ireland
3,190
2.5%
4
England
2,281
1.8%
5
Canada
1,848
1.4%
World distribution
Loading map...