Surname 默克 (Merk 
, Mirch 
, Merck 
) , around the globe, is a common cognomen. The cognomen 默克 is habitual in Germany, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Hungary. In absolute terms, the name is most common in Germany, the United States, and Switzerland. Very seldom, 默克 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Merk | Germany, France, Poland, United States, Switzerland |
| Mirch | Canada, Brazil, United States, India, Democratic Republic of the Congo |
| Merck | Germany, France, United States, Guatemala, Switzerland |
| 默克 | China |