Family name 欣刚 (欣刚 
) , in all the world, is a rare last name. The cognomen 欣刚 is habitual in Eastern Asia, particularly China, where it is a very rare surname. More prevalently, 欣刚 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 欣刚 | China |