Cognomen Suwannasang (Suwannasang 
, สุวรรณแสง , สุวัณณะสังข์ ) , in all the world, is quite a rare family name. The surname Suwannasang is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname.
Urai, Pimpisa, Piyapat, Ouraiwan, Wadsana, Sarawoot, Sasikarn, Sawitree, Sirakarn, Supharat, Sujittra, Chirayut, Kittisak, Parapada, Panthipha, Pornthip, Pinkamon, Phakawan, Ronnavid, Lalinrak, Thanawat, Nattawut, Prapada, Chayada, Songwut, Sujitra, Santi, Sanan, Amorn, Kulab, Tanwa, Tawat, Ticha, Natta, Wiwat, Sunisa, Nattamon, Suchat, Juntra, Thawat, Nikorn, Wandee, Maliwan, Sawaeng, Siriwan, Surasak, Supanya, Supajee, Kirati, and Natdanai