Last name จำแลง (Jamlang 
, Chamlaeng , Chamlai ) , all over the world, is a rare cognomen. The last name จำแลง is characteristic of South-eastern Asia, particularly Philippines, where it is a rare surname, Thailand, where it is a very rare surname, and Malaysia. In absolute terms, the name is most common in Philippines, Thailand, and the United States. Likewise, จำแลง is the forename as well as the last name.