Sigiriya or Sinhagiri is an ancient rock fortress located in the northern Matale District near the town of Dambulla in the Central Province, Sri Lanka. The name refers to a site of historical and archaeological significance that is dominated by a massive column of rock nearly 200 metres (660 ft) high.

According to the ancient Sri Lankan chronicle the Culavamsa, this site was selected by King Kashyapa (477 – 495 CE) for his new capital. He built his palace on the top of this rock and decorated its sides with colourful frescoes. On a small plateau about halfway up the side of this rock he built a gateway in the form of an enormous lion. The name of this place is derived from this structure — Sīnhāgiri, the Lion Rock

Sigiriya consists of an ancient citadel built by King Kashyapa during the 5th century. The Sigiriya site contains the ruins of an upper palace located on the flat top of the rock, a mid-level terrace that includes the Lion Gate and the mirror wall with its frescoes, the lower palaces located behind the lavish lower gardens, and moats and ramparts which protected the citadel. The site was both a palace and a fortress. The upper palace on the top of the rock includes cisterns cut into the rock.