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