Last name Масатоши (Masatoshi 
, Масатоши 
, Masatochi 
) , globally, is quite a rare cognomen. The family name Масатоши is characteristic of Eastern Asia, particularly Japan, where it is quite a rare surname, Taiwan, and Hong Kong, where it is a rare surname. In absolute terms, it is the most numerous in Eastern Asia, particularly Japan, China, and Taiwan. Also, Масатоши is the forename as well as the last name.