Giles Ji Ungpakorn (Thai: ใจ อึ๊งภากรณ์; RTGS: Chai Uengphakon; IPA:[tɕāj ʔɯ́ŋ.pʰāː.kɔ̄ːn]; born 25 October 1953) is a Thai-British academic and Marxist political activist. He formerly worked as an associate professor on the Faculty of Political Science, Chulalongkorn University, before he fled to the United Kingdom in 2009 after facing a lèse majesté charge in Thailand.