Phra Malai Kham Luang (Thai: พระมาลัยคำหลวง, pronounced [pʰráʔ māː.lāj kʰām lǔaŋ]) is the royal version of a Thai legendary poem of the Sri Lankan Arhat Maliyadeva whose stories are popular in Thai Theravada Buddhism. The vernacular version is known as Phra Malai Klon Suat. Phra Malai is the subject of numerous palm-leaf manuscripts (in Thai bai lan), folding books (in Thai samut khoi), and artworks. His story, which includes concepts such as reincarnation, merit, and Buddhist cosmology, was a popular part of Thai funeral practices in the nineteenth century.