Cognomen 娌刚 (娌刚 
) , all around the world, is a very rare last name. The last name 娌刚 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 娌刚 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 娌刚 | China |