Surname צ'אק (Chuck 
, Csák 
, צ'אק 
) , around the globe, is quite a rare family name. The cognomen צ'אק is characteristic of Jamaica, where it is quite a common surname, Hong Kong, where it is quite a rare surname, and Trinidad and Tobago. In absolute terms, it is commonest in the United States, Jamaica, and China. More prevalently, צ'אק is the forename as well as the last name.