Main country
Japan
7,439 people
90.8% of total
Surname
Masui
8,196 worldwide · 32 countries
8,196
Total population
32
Countries
1 in every 988,287
Frequency
Rarity
Rare
Dispersion
Regional
Top countries
1
Japan
7,439
90.8%
2
United States
199
2.4%
3
Tanzania
195
2.4%
4
Brazil
102
1.2%
5
Indonesia
84
1%
World distribution
Loading map...