Diyawanna Oya

Diyawanna Oya (Parliament Lake; Tamil: தியவன்ன ஓயா) is one of the lakes within Sri Jayawardenapura Kotte, Sri Lanka.

The new Sri Lankan Parliament Building was built on an island formed at the center of the lake using dredgings from the surrounding marshlands.

Coordinates: 6°53′12″N 79°55′15″E / 6.88667°N 79.92083°E / 6.88667; 79.92083