Sithulpawwa Rajamaha Viharaya is one of the greatest ancient Buddhist monastery located in Hambanthota District in Southern Province of Sri Lanka. The history of the monastery is date back to 2nd century BC. It is believed that this place was built by King Kawanthissa ( 205–161 BC).
According to Buddhist literary, this place was center for Buddhist education for Buddhist monks and once there had been 12,000 arhat monks around this location. A number of caves temples, images houses, stupas, and ponds located around this large area are bear witness for this story.