Surname Bunlong (บุญหลง 
, บุญลอง , Bunlong 
) , all over the world, is quite a rare cognomen. The cognomen Bunlong is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, Cambodia, where it is a rare surname, and Philippines, where it is an extremely rare surname. In absolute terms, it is commonest in Thailand, Cambodia, and the United States. Likewise, Bunlong is the forename as well as the last name.