Reamker is a Cambodian epic poem, based on the Sanskrit's Rāmāyana epic. The name means "Glory of Rama". It is the national epic of Cambodia, along with the less famous version of the Trai Bhet. The earliest mention of this epic's manuscript in Cambodia dates back to the 7th century based on Veal Kantel inscription (K.359). The surviving text of Reamker dates from 16th century. Reamker adapts the Hindu ideas of the Ramayana to Buddhist themes and shows the balance of good and evil in the world. More than just a reordering of the epic tale, the Reamker is a mainstay of the royal ballet's repertoire. Like the Ramayana, it is a philosophical allegory, exploring the ideals of justice and fidelity as embodied by the protagonists, King Rāma and Queen Sītā. The epic is well known among the Khmer people for its portrayal in Khmer dance theatre, called the Lakhon, in various festivals across Cambodia. Scenes from the Reamker are painted on the walls of the Royal Palace in Khmer style, and its predecessor is carved into the walls of the Angkor Wat and Banteay Srei temples. It is considered an integral part of Cambodian culture.

The Ramayana, also known as Valmiki Ramayana, as traditionally attributed to Valmiki, is a smriti text from ancient India, one of the two important epics of Hinduism known as the Itihasas, the other being the Mahabharata. The epic narrates the life of Rama, a prince of Ayodhya in the kingdom of Kosala. The epic follows his fourteen-year exile to the forest urged by his father King Dasharatha, on the request of Rama's stepmother Kaikeyi; his travels across forests in the Indian subcontinent with his wife Sita and brother Lakshmana; the kidnapping of Sita by Ravana, the king of Lanka, that resulted in war; and Rama's eventual return to Ayodhya along with Sita to be crowned king amidst jubilation and celebration.