Last name まさひろ (Masahiro 
, まさひろ) , all over the world, is quite a common cognomen. The family name まさひろ is characteristic of Japan, where it is quite a rare surname, Taiwan, and Singapore, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Eastern Asia, particularly Japan, China, and Taiwan. Also, まさひろ is the forename as well as the last name.