Last name 三金 (Sanjin 
, 三金 
) , worldwide, is a rare surname. The family name 三金 is habitual in Southern Europe, particularly Bosnia and Herzegovina, where it is quite a rare surname, Slovenia, where it is a rare surname, and Croatia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Bosnia and Herzegovina, China, and Indonesia. Predominantly, 三金 is the forename as well as the last name.