Delgamuwa Raja Maha Vihara (Sinhala: දෙල්ගමුව රජ මහා විහාරය) is an ancient Buddhist temple situated in Kuruvita of Ratnapura District, Sri Lanka.

[2] This temple is reputed as the hiding place of the tooth relic of Buddha during the ruling period of Portuguese in the country.

[1] The written history of Delgamuwa Vihara goes back to the time period of Sitawaka kingdom.

[3] With the arrival of the Portuguese in 1505 and the death of the King Bhuwanakabahu VII of Kotte Kingdom, a political turmoil was caused in the country.

[7] A few years after the removal of tooth relic, the temple was robbed and demolished by the Portuguese who constructed a fort there later.