Family name Namwongsa (Namwongsa 
) , worldwide, is a rare last name. The cognomen Namwongsa is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname.
Manop, Warisa, Wasana, Wipada, Saranya, Sarinya, Saowapa, Suranan, Sukanya, Supawan, Suwalee, Sujitra, Atchara, Apichat, Chutima, Ccharinthip, Bunthon, Kanarak, Kanjana, Korawit, Parinya, Pattana, Temjit, G Winrapon, Preeya, Prasit, Sanya, Sawat, Surin, Anong, Kanda, Kanit, Pimol, Decha, Dokor, Harun, Paiboon, Valya, Wirun, Utorn, Mayura, Sompon, Somjai, Anucha, Arthip, Apisit, Komkid, Pannee, Wisan, and Prakkhanan