Sondhi Limthongkul (Thai: สนธิ ลิ้มทองกุล; traditional Chinese: 林明達; pinyin: Lin Mingda, born 7 November 1947) is a Thai media mogul and leader of the right-wing People's Alliance for Democracy (PAD) and later was elected for leader of the New Politics Party (NPP).
Sondhi was born in Bangkok to Chinese immigrant parents from Hainan. He majored in history at the University of California, Los Angeles, where he was a reporter for the student newspaper, The Daily Bruin, from 1966 to 1969. He received his M.A. from Utah State University in 1972.
Returning to Thailand, he worked for the newspaper Prachatipatai (Democracy) as a reporter and managing editor in 1973 and 1974.