Family name Luon (Luon 
) , around the world, is a rare last name. The last name Luon is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, Cambodia, and Vietnam, where it is a very rare surname. Measured by absolute frequency, the name is most common in South-eastern Asia, particularly Malaysia, Indonesia, and Vietnam. Likewise, Luon is the forename as well as the last name.