Family name סאטו (Sato 
, Satu 
, סאטו 
) , in all the world, is a common cognomen. The family name סאטו is habitual in Solomon Islands, where it is quite a common surname, Hong Kong, where it is quite a rare surname, and Japan. Not in comparison with a country's population, this name is the most popular in Brazil, Indonesia, and Japan. Also, סאטו is the forename as well as the last name.