Changlun also known as Changlon (Thai: จังโหลน; RTGS: Chang Lon) is a small town in Kubang Pasu District, Kedah, Malaysia.

Prior to becoming part of Malaysia, it had a well-defined territory and population supported by a working government and had previously entered into various legal relations with other nations like Siam and the British.

The main border town of Changlun became the district of Kubang Pasu, now in Kedah of Malaysia.

[1] This resulting in adverse socio-demographic impacts that affected majority Malay population particularly in the Thai provinces of Pattani, Yala and Narathiwat.

[2] As similar to most cities in Malaysia, Changlun population comprised 694 (46.1%) Malays, 583 (38.7%) Chinese, 86 (5.7%) Indian, 28 (1.9%) other Bumiputera and others such as Siamese and 115 (7.6%) Non-Malaysian.