Cognomen 克拉姆 (Kram 
, Cram 
, Crum 
) , worldwide, is a common surname. The cognomen 克拉姆 is habitual in Cayman Islands, where it is quite a common surname, the United States, where it is quite a rare surname, and Netherlands. Measured by absolute frequency, it is the most numerous in the United States, Egypt, and Germany. Much less frequently, 克拉姆 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kram | Germany, United Kingdom, United States, Egypt, India |
| Cram | Canada, Germany, United Kingdom, United States, India |
| Crum | Canada, Germany, United Kingdom, United States, Australia |
| 克拉姆 | China |