Rhatha Phongam (; ; born 19 May 1983), nickname Ying (), is a Thai actress and singer. She is best known internationally for her supporting role in Only God Forgives in 2013.
She is the daughter of a female comedian Noi Phongam and the niece of actor-comedian Suthep Po-ngam.
She has obtained a bachelor and a master's degree in Communication Arts from Bangkok University.