Cognomen Синобу (Shinobu 
, Joken 
, Sinobu 
) , all over the world, is quite a common last name. The surname Синобу is characteristic of Japan, where it is quite a rare surname, Taiwan, where it is a rare surname, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Eastern Asia, particularly Japan, China, and Taiwan. Also, Синобу is the forename as well as the last name.