Last name 益信 (益信 
, Masunobu 
, Yakushin 
) , in the entire world, is a rare cognomen. The surname 益信 is characteristic of Israel, where it is a rare surname, Russia, and Spain, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Russia, China, and Spain. Likewise, 益信 is the forename as well as the last name.