Family name Santapan (Santapan 
) , in all the world, is a very rare last name. The cognomen Santapan is characteristic of Thailand, where it is a rare surname, Argentina, where it is a very rare surname, and Chile, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Thailand, Argentina, and the United States. Also, Santapan is the forename as well as the last name.