Last name 夸克 (Kwok 
, Quirk 
, 夸克 ) , around the world, is a widespread surname. The cognomen 夸克 is characteristic of Hong Kong, where it is a widespread surname, Bermuda, where it is a common surname, and Cayman Islands (explore the name in all countries). Measured by absolute frequency, it is commonest in Hong Kong, China, and the United States. Likewise, 夸克 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kwok | Indonesia, Taiwan, China, Hong Kong, United States |
| Quirk | United Kingdom, Australia, China, Singapore, United States |
| 夸克 | China |
| Quirke | United Kingdom, Canada, Australia, Singapore, United States |