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