Cognomen 半明 (半明 
) , in the world, is a very rare family name. The family name 半明 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 半明 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 半明 | China |
| 半明 正之 Japanese steel manufacturer, JP (b. 1940) |
|