Cognomen Laolang (Laolang 
) , in the entire world, is a rare surname. The cognomen Laolang is habitual in Botswana, where it is quite a rare surname, South Africa, where it is a very rare surname, and Thailand, where it is an extremely rare surname. In absolute terms, this name is the most popular in Botswana, South Africa, and China. Much less frequently, Laolang is the forename as well as the last name.