Family name Puai (Puai 
, ปวย , ป่วย) , around the world, is a rare cognomen. The cognomen Puai is characteristic of South-eastern Asia, particularly Malaysia, where it is a rare surname, Indonesia, where it is a very rare surname, and Thailand. Measured by absolute frequency, it most frequently occurs in Malaysia, Indonesia, and China. Much less frequently, Puai is the forename as well as the last name.