Last name Tanjun (Tanjun 
) , around the globe, is a rare cognomen. The cognomen Tanjun is habitual in Thailand, where it is a rare surname, Peru, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Thailand, Peru, and China. More frequently, Tanjun is the forename as well as the last name.