Main country
United States
11,162 people
71.3% of total
Surname
Osullivan
15,656 worldwide · 56 countries
15,656
Total population
56
Countries
1 in every 517,374
Frequency
Rarity
Moderate
Dispersion
Global
Top countries
1
United States
11,162
71.3%
2
Ireland
2,352
15%
3
Australia
762
4.9%
4
England
668
4.3%
5
Canada
206
1.3%
World distribution
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