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