Trey Ahng refers to "grilled fish" in Khmer. It is one of Cambodian specialities. Various kinds or varieties of freshwater fishes are eaten in the country and come from the Tonle Sap Lake or the Mekong River

In Khmer, Ahng means "grilled", a generic term that can be applied to many dishes which is cooked by grilling. Traditionally, the fish is eaten as pieces wrapped in lettuce or spinach leaves and then dipped into Teuk Trey, a fish sauce which is somewhat similar to Vietnam’s Nuoc Mam, but with the addition of ground peanuts.