The frilled tree frog, rough-armed tree frog, or Southeast Asian tree frog (Kurixalus appendiculatus) is a species of frog in the family Rhacophoridae found in Brunei, Cambodia, India, Indonesia, Malaysia, Myanmar, the Philippines, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical swamps, subtropical or tropical moist shrubland, rivers, swamps, freshwater marshes, and intermittent freshwater marshes.