Cognomen ลำภู (Lampu 
, Lamphu 
, Lumpoo ) , in the world, is quite a rare last name. The last name ลำภู is habitual in Indonesia, where it is a rare surname, Thailand, and Finland, where it is a very rare surname. Measured by absolute frequency, the name is most common in South-eastern Asia, particularly Indonesia, Thailand, and Myanmar. More frequently, ลำภู is the forename as well as the last name.