Surname 上中 (上中 
, Kaminaka 
, Uenaka 
) , in the entire world, is a rare family name. The family name 上中 is characteristic of Singapore, where it is a very rare surname, Israel, and New Zealand. In absolute terms, this name is the most popular in China, the United States, and Brazil. Likewise, 上中 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 上中 | China |
| Kaminaka | Canada, United States, Israel, Singapore, China |
| Uenaka | Cambodia, Brazil, Canada, United States, China |
Shangzhong, Tsujinaka, and ウエナカ