Last name คาใจ (Khachai 
, Kayachai , คาใจ ) , in the world, is a rare family name. The cognomen คาใจ is habitual in Algeria, where it is a rare surname, Thailand, and Morocco. Measured by absolute frequency, the name is most common in Algeria, Thailand, and India. Very seldom, คาใจ is the forename as well as the last name.