Surname Wailin (Wailin 
) , all over the world, is quite a rare last name. The cognomen Wailin is characteristic of Myanmar, where it is quite a rare surname, Hong Kong, where it is a rare surname, and Malaysia. Measured by absolute frequency, it most frequently occurs in South-eastern Asia, particularly Myanmar, Malaysia, and Indonesia. Also, Wailin is the forename as well as the last name.