Last name บ้านหมู่ (Banmu 
, บ้านหมู่) , across the world, is a rare family name. The cognomen บ้านหมู่ is habitual in Japan, where it is a rare surname, Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, บ้านหมู่ is the forename as well as the last name.