Mayoon is a monkey-warrior from the city of Meuang Chomphoo, that appears in the Ramakien. He has a pale purple fur and wears a kabang-style crown. He is one of the eighteen Wahnon Sip-paet Mongkut, and an avatar of Virupaksa, who is also known as Varuna and in China as Guang Mu Tian (fig.), i.e. one of the Chinese Four Heavenly Kings and the lokapala of the West.