Family name เจิ่ง (Choeng 
, เจิ่ง) , globally, is a rare cognomen. The last name เจิ่ง is habitual in Macao, where it is quite a rare surname, Malaysia, where it is a rare surname, and Cambodia. In absolute terms, it is commonest in Malaysia, China, and Macao. Very seldom, เจิ่ง is the forename as well as the last name.