Cognomen Khongthan (Khongthan 
) , in the world, is a very rare family name. The surname Khongthan is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
Satana, Omkwan, Koranan, Pachara, Rungrat, Natrada, Wichian, Chanchai, Yaowarat, Thipphapon, Tippayarat, Thipphaphon, and Phattharaphon