Sujit Wongthes สุจิตต์ วงษ์เทศ (or Wongthet) (b. April 20 1945) is a Thai journalist and author.
During his time at university, he wrote for the student journal, Sangkhomsat Paritht (Social Science Review), in which he criticized excessive materialism and the Americanization of Thai culture; he wrote contemporaneously with Sulak Sivaraksa, who was the journal's editor at the time.
After the military coup that toppled the Seni Pramoj administration, Prachachat was shut down.
In this work, he advanced the position that modern Thais are a mixture of native Lao people and Chinese migrants to Siam, as well as other groups.
He followed this work with Khon Thai Mai Dai Ma Chak Nai ('The Thai Did Not Come From Somewhere Else'), which further attacked nationalist ideas by showing Tai people still living happily in China.