Surname บ๋วย (Buai 
, บ๋วย) , all around the world, is a rare family name. The cognomen บ๋วย is characteristic of Malaysia, where it is a rare surname, Myanmar, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Malaysia, Myanmar, and China. Also, บ๋วย is the forename as well as the last name.