Cognomen 顽毅 (顽毅 
) , around the globe, is a very rare last name. The family name 顽毅 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 顽毅 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 顽毅 | China |