Cognomen 约克 (Yock 
, Yorke 
, Jocher 
) , all around the world, is a common last name. The surname 约克 is characteristic of Latin America and the Caribbean, particularly Saint Vincent and the Grenadines, where it is a common surname, Grenada, where it is quite a common surname, and Trinidad and Tobago (explore the name in all countries). Measured by absolute frequency, the name is most common in Ghana, the United Kingdom, and the United States. Much less frequently, 约克 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yock | Germany, Malaysia, Canada, United States, United Kingdom |
| Yorke | Malaysia, Ghana, Canada, United States, United Kingdom |
| Jocher | Germany, Australia, Canada, United States, United Kingdom |
| 约克 | China |