Last name דק (Duc 
, דק 
) , globally, is a common family name. The last name דק is characteristic of Vietnam, where it is quite a common surname, Switzerland, and Macao, where it is quite a rare surname. In absolute terms, this name is the most popular in Vietnam, France, and Malaysia. Also, דק is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duc | France, Democratic Republic of the Congo, Malaysia, Vietnam, United States |
| דק | Israel |
| מיכאל דק IL (b. 1947) |
|