Kataragama deviyo is a guardian deity of Sri Lanka. A popular deity who is considered to be very powerful, shrines dedicated to Kataragama deviyo are found in many places of the country. Sinhalese Buddhists believe him also as a divine patron of the Buddha Sasana in Sri Lanka. An ancient temple dedicated to God Kataragama, known as Ruhunu Maha Kataragama Devalaya is situated in the South-Eastern town of Kataragama in Monaragala District of Uva Province.

Kataragama temple in Kataragama, Sri Lanka, is a temple complex dedicated to Buddhist guardian deity Kataragama deviyo and Hindu War God Murugan. It is one of the few religious sites in Sri Lanka that is venerated by the Buddhists, Hindus, Muslims and the Vedda people. For most of the past millennia, it was a jungle shrine very difficult to access; today it is accessible by an all-weather road. The shrines and the nearby Kiri Vehera are managed by Buddhists, the shrines dedicated to Teyvāṉai and Shiva are managed by Hindus and the mosque by Muslims.