Family name 必金 (Bijin 
, 必金 ) , around the world, is a rare last name. The last name 必金 is habitual in Malaysia, where it is a rare surname, China, where it is a very rare surname, and Chile, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in China, Malaysia, and India. More frequently, 必金 is the forename as well as the last name.