Surname シンジ (Shinji 
, シンジ , Sinzi 
) , globally, is a common last name. The last name シンジ is characteristic of Japan, where it is quite a common surname, Taiwan, where it is quite a rare surname, and Tanzania, where it is a rare surname. Not in comparison with a country's population, it is commonest in Japan, China, and Indonesia. Much less frequently, シンジ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shinji | Tanzania, South Korea, China, Indonesia, Japan |
| シンジ | Japan |
| Sinzi | Tanzania, Brazil, United States, Malaysia, India |