Main country
Japan
1,834 people
98.9% of total
Surname
Oyasu
1,854 worldwide · 3 countries
1,854
Total population
3
Countries
1 in every 4,368,932
Frequency
Rarity
Rare
Dispersion
Local
Top countries
1
Japan
1,834
98.9%
2
United States
19
1%
3
Argentina
1
0.1%
World distribution
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