Chiang Saen (disambiguation)
Chiang Saen is a capital of the ancient Lanna kingdom, and namesake of the modern district. Chiang Saen may also refer to:

 Chiang Saen district, in Chiang Rai Province, northern Thailand
 Chiang Saen Lake, a natural freshwater lake in Chiang Saen district, Thailand
 Chiang Saen languages, a subgroup of the Southwestern Tai languages