Last name เค็ม (Khem 
, เค็ม 
, Salsy 
) , around the world, is quite a rare cognomen. The family name เค็ม is habitual in Qatar, where it is quite a rare surname, Malaysia, and Nepal. In absolute terms, it is the most numerous in India, Malaysia, and the United States. Much more frequently, เค็ม is the forename as well as the last name.